Despite us being on the heels of the big Russell indexes changing and despite the quarter-end being a day away, this was a boring day. A study showed a small decrease in online job advertisements, but that was the only item on the economic front. Oil traded higher and bond yields came down as traders are voting for more stability the rest of the year there.

Here are today's unofficial closing bell levels:

Dow 8,531.19 +92.80 (1.10%)
S&P 500 927.18 +8.28 (0.90%)
Nasdaq 1,843.34 +5.12 (0.28%)

Top Analyst Calls

Talk of "green shoots" abounds with the S&P 500 up 40% from its lows in March 2009, but Goldman Sachs (NYSE: GS) CEO Lloyd Blankfein remains cautious in his outlook for the global economy. "I think it's going to be a long, protracted recession," he said while speaking on a panel at the annual International Organization of Securities Commissions (IOSCO) conference in Tel Aviv.

Blankfein also emphasized the importance of intelligent regulation and risk management, warning fellow finance executives not to discount the latter. "The culture of risk management is very important and hard to legislate, but at the end of the day, you have to make sure that the people on the risk management side of your operation are just as capable, and maybe therefore, just as well-paid and have the career opportunities as people on the producing side of the business."

Long-term growth stock expert Alexander Green sees long-term upside potential for conservative investors willing to invest along side of Warren Buffett.

Here, the investment director of The Oxford Club reviews Berkshire Hathaway (NYSE: BRK.B), a holding in his model portfolio.

"The market surprised investors with the magnitude of its drop over the last year and a half. Then it surprised them again with a furious rally that began in early March.

"What lies just ahead? No one knows for sure, of course. But we do know several investments that are attractively priced at current levels, such as Berkshire Hathaway (BRK.B), a conservative choice, run by investment great Warren Buffett.

This is a follow-up on the short term results comparing the Williams Companies Inc. (NYSE: WMB) to Apple Inc. (NASDAQ: AAPL), Google Inc. (NASDAQ: GOOG) , Microsoft Corp. (NASDAQ: MSFT), and Berkshire Hathaway Inc. (NYSE: BRK.B).

I wrote a series of stories about why I thought WMB would outperform the other more popular stocks and two weeks is not much of a test unless you have been trading on my suggestions instead of investing.

The final post was Serious Money: Better than Apple, Google, Microsoft & Berkshire Hathaway, Part 5 if anyone cares to go back and review that.

Along with the May flowers, the coming week will bring plenty more disappointing earnings reports. Analysts surveyed by Thomson Reuters anticipate that Archer Daniels Midland Co. (NYSE: ADM), CBS Corp. (NYSE: CBS), Cisco Systems Inc. (NASDAQ: CSCO), CVS Caremark Corp. (NYSE: CVS), Kraft Foods Inc. (NYSE: KFT), and Walt Disney Co. (NYSE: DIS) will all post lower earnings for the most recent quarter. American International Group Inc. (NYSE: AIG) and Sprint Nextel Corp. (NYSE: S) are expected to report losses.

But which companies are doing well? Here are a few reporting this week that analysts are optimistic about.

This is the final post on why I believe you would be better off investing in the Williams Companies Inc. (NYSE: WMB) than you would in Apple Inc. (NASDAQ: AAPL), Google Inc. (NASDAQ: GOOG) , Microsoft Corp. (NASDAQ: MSFT), or Berkshire Hathaway Inc. (NYSE: BRK.B).

I hope I made the case this week outlining the deeper value proposition, competitive advantages, reduced risk, and of course the dividend that make Williams the preferable investment for the long term.

This week I have been evaluating the Williams Companies Inc. (NYSE: WMB), a stock that I think would make a good core holding for anyone seeking a dependable dividend, growth potential, and relatively low risk given its current price.

The price was $13.77 when I started the series and $13.00 when I myself bought in.

After the first three posts, I hope the case has been made, but we will continue nevertheless looking at Apple Inc. (NASDAQ: AAPL), Google Inc. (NASDAQ: GOOG) , Microsoft Corp. (NASDAQ: MSFT), and Berkshire Hathaway Inc. (NYSE: BRK.B) for more supporting evidence.

Over the past three years, I have found occasion to recommend these stocks and to pan them when their prices became ridiculous, not always with perfect timing. This week I have been expressing my preference for one over the rest, the Williams Companies Inc. (NYSE: WMB).

Part 3 continues to compare Apple Inc. (NASDAQ: AAPL), Google Inc. (NASDAQ: GOOG) , Microsoft Corp. (NASDAQ: MSFT), and Berkshire Hathaway Inc. (NYSE: BRK.B) to Williams using a variety of common criteria.

In my first post on the subject yesterday, I discussed some of the advantages that Williams Companies Inc. (NYSE: WMB) might have over more popular stock "brands" like Apple Inc. (NASDAQ: AAPL), Google Inc. (NASDAQ: GOOG), Microsoft Corp. (NASDAQ: MSFT) and Berkshire Hathaway Inc. (NYSE: BRK.B) -- all great companies.

I highlighted the yield, book value, and spread between natural gas and oil, concluding that even "my pal Warren" would prefer Williams. Today I continue to look at the various valuation metrics one might contemplate in examining a stock's potential.

If I write about Apple Inc. (NASDAQ: AAPL), Google Inc. (NASDAQ: GOOG), Microsoft Corp. (NASDAQ: MSFT) or even one of my favorites Berkshire Hathaway Inc. (NYSE: BRK.B). I know that readership will be higher than if I write about less popular names.

Most recently this happened when I wrote about Williams Companies Inc. (NYSE: WMB) and to my disappointment interest was not high. Maybe it was the header: Chasing Value: Williams has the pipes and it's not blowing smoke -- go back and read it.

"Though the past year has been tough for Warren Buffett, we still like Berkshire Hathaway (NYSE: BRK.B), which we believe is well-positioned for the year ahead," says Paul Tracy.

In his StreetAuthority Market Advisor, he looks at the holding company which is a position in his "undervalued gems" model portfolio. Here's his review.

"For only the second time in the investment-based company's 44 years, Buffett saw the book value of Berkshire drop. Of course his book value decline of 9.6% should be put in context with the 37% loss incurred by the S&P 500.

In what surely must be the PR move of the decade, Moody's Corp. (NYSE: MCO) has downgraded Berkshire Hathaway (NYSE: BRK.A) from AAA to AA2.

Why is this a great PR move? Well, Berkshire owns 20% of Moody's. And what could be a better demonstration of Moody's independence and objectivity than its decision to downgrade the financial strength of its biggest shareholder?

Pretty clever, no? Sure -- unless you start to consider that Moody's and the other ratings agencies gorged on fees from investment banks to rate toxic waste for years -- using their AAA credit ratings to convince investors to buy the securities. Now that the ratings agencies have no fees to earn from rating toxic waste, they are studiously trying to rebuild their reputation for objectivity.

Heading into the week's end, we find that the ground under Wall Street has shifted a little. For at least one week this year, investors have looked at the glass as half full, lending some support to a story I posted earlier in the week: Is the stock market spring loaded? Could it move 3,000 points higher now?

Given that there was plenty of bad news, and some of the good news was suspect, I think investors simply decided "it is better to light one small candle than curse the darkness."

With the stock market hovering around a 12-year low, Warren Buffett is back on the hunt for U.S. acquisitions.

The Berkshire Hathaway (NYSE: BRK.A) mogul told Bloomberg that the depressed U.S. market and lack of cash available to fund deals is making the domestic market attractive in a way that it hadn't been in years. "The way things are going, there's a lot of things that may be happening in the United States," he said.

Buffett has already made preferred stock and convertible bond deals with a number of distressed companies with strong long-term prospects, taking fat yields along with a chance to profit from turnarounds. Buffett also told Bloomberg that his GEICO business is doing well as cost-conscious consumers look for better deals on car insurance, but added that Berkshire's other consumer-oriented companies are flailing along with the broader economy.

Here are some highlights from this past week's earnings coverage from BloggingStocks:

• Adobe Systems Inc. (NASDAQ: ADBE) was upgraded following its Q1 release and guidance.
• America's Car-Mart Inc. (NASDAQ: CRMT) posted higher earnings in Q3 and same-store sales growth.
• AT&T Inc. (NYSE: T) was upgraded by an analysts who felt that consensus estimates are beatable.
• Berkshire Hathaway Inc. (NYSE BRK.A) suffered a big profit decline, its fifth straight quarterly decline.
• Blackstone Group (NYSE: BX) posted horrible Q4 results as the values of its portfolio shrank.