re: Most Likeable Actors vs. Least Likeable Actors

I'm amazed Tom Hanks isn't first on every list. Nicest guy in Hollywood by all accounts, great actor, and true patriot (nothing to do with politics but rather all the great work he does preserving and honoring the history of WWII).

Other likeables:

Robert Downey Jr.--I think part of the reason--besides his prodigious talent--that he keeps getting chances is that people just love the guy and want to see him do well.

Kristen Bell--She seems really goofy and silly. She's always on Craig Ferguson's show and she's always so damn cute and charming.

Jeff Bridges--Just seems like a cool, laid back dude.

I agree with all the unlikeables in the OP. A few more:

Channing Tatum, Ashton Kutcher, Katherine Heigl, Topher Grace, Shia Lebeouf