This post is part of a 12-article feature that can be read here: Today's best income ideas.

"Some types of bonds have rarely looked as appealing as they do now compared with other income alternatives," says Philip Springer. In Leeb's Income Performance Letter, the advisor looks at three favorite fixed-income funds -- one invested in mortgages, one in corporates and one in municipal bonds.

"Our top pick among fixed-income funds now is U.S. government-guaranteed, mortgage-backed securities (MBS) issued by government agencies.

"We've added two bond fund's to our buy list: PIMCO Total Return (PTTDX) and Loomis Sayles Bond (LSBRX)," says Mark Salzinger.

The editor of The No-Load Fund Investor explains, "We favor both funds for many of the same reasons: both have experienced, top-flight management supported by robust credit-research staffs." Here's his review.

"Both bond funds have performed strongly over the long-term and during recent market turbulence. And each has a relatively open mandate that allows their respective management teams the flexibility to scoop up attractive bonds from diverse sectors of the bond market in pursuit of both capital appreciation and income.

"PIMCO Total Return is the world's biggest bond fund, and second large mutual fund of any stripe, with $128 billion in assets. The fund's popularity is a product of the outstanding track record and enormous reputation of its manager, Bill Gross. Its 10-year annualized return of 6% puts the fund in the top 5% of all intermediate-term bond funds over that time.