This post was part of the AOL Money & Finance Best & Worst of 2007 feature. The voting has now closed and readers have chosen Rosie O'Donnell's war of words with Donald Trump and others as the dumbest celebrity feud of the year. Be sure and let us know in the comments if you are pleased with this result.

Back in the day of the (fictional) Capulets and Montegues or the (real) Hatfields and McCoys, "feuds" were not something to be taken lightly. They separated men from boys and resulted in certain bloodshed. These days, tabloids will report on a new "celebrity feud" each week, as our nation's most rich and famous lash out at one another in the press or on live television.

Sometimes, there are justified reasons for unrest among pop culture's elite ... a cuckolding, perhaps, or a vicious custody battle (I blame Alec Baldwin's recent poor judgment on stress, but maybe he gets off lightly in my book because he's so brilliant on 30 Rock). At any rate, here's some of the most high-profile fights that took center stage in 2007.

The American public twice served as judge and jury for Rosie O'Donnell this year. Late last year, the comedienne found herself in a war of words with "The Donald" (Trump), after O'Donnell criticized the billionaire's handling of a scandal involving the Miss USA Pageant, of which Trump holds the rights. Name-calling and mudslinging ensued, and O'Donnell colleague Barbara Walters caught some shrapnel. Months later, on the May 23 episode of The View -- on which the liberally minded Rosie served as one of four co-hosts -- she got into a heated (split-screen!) debate with Elisabeth Hasselbeck, the "conservative" member of the hosting panel. Tempers flared and Rosie ultimately walked out on her contract with the program, which was set to expire a few months later anyway. Whoopi Goldberg and Sherri Shepherd have since picked up hosting duties.

This post is written as part of AOL Money & Finance's Best & Worst 2006. If you think that Britney Spears makes too much money, cast your vote.

Poor Britney Spears, picked on for her parenting gaffes and apparent lack of social graces. But award-winning pop singer and dancer Spears has sold more than 70 million albums worldwide, making her one of the most successful female artists ever.

Born in Mississippi, she rose to prominence as a member of the New Mickey Mouse Club, such hit songs as "Oops, I Did It Again," and for her very successful Pepsi commercials, which reportedly earned her more than $7 million. In 2003 Forbes called her the most powerful celebrity in the world. Antics such as appearing nude on magazine covers, appearing seemingly nude in public performances, and her infamous kiss with Madonna during the 2005 MTV Music Video Awards have brought her criticism from the parents of her legions of preteen fans, many of whom look to her as a role model; Spears has denied being a role model.

In early 2004 she was very briefly married to a childhood friend, and then married dancer Kevin Federline later that year. Spears and Federline had two children before Spears filed for divorce in late 2006. Despite her break to have a family, the Britney Spears brand continued to prosper, with a highly popular perfume, Curious, released in 2004, which reportedly made about $100 million. A Britney Spears best-of album was also released in 2004, and a comeback album is reportedly planned for release in 2007.