Most Likeable Actors vs. Least Likeable Actors

Certain actors make movies appear better than the movie really is and vice versa sometimes just based on their likeability.

I was watching Open Range last night for the 3rd time and I realized that Robert Duvall might be the most likeable actor for me in history. In retrospect, Open Range is a so-so story but it's Duvall which makes me love that film...he carries Costner and the supporting cast. I can't think of a movie he doesn't make infinitely better. He's a great actor - but I also just like him. As the antagonist lawyer in a Civil Action - his supporting role sustains that movie when it's going nowhere for long stretches. In fact, it was hard to dislike him as the lawyer for big business.

So for you, which actors make a movie far better or far worse regardless of their acting chops?

Most likeable: I tend to overrate movies if the following actors are in them:

1. Robert Duvall
2. Clint Eastwood
3. Ashley Judd (there's no reason I should like Double Jeopardy, Bug, Kiss the Girls save for her.)
4. Michael Caine
5. Richard Farnsworth

Least likeable: I tend to underrate the movie if these actors are in them:

1. Adrien Brody (I almost won't see the film if he's in it. Just can't stand him.)
2. Colin Farrel
3. Hilary Swank (which is why I have such mixed-emotions about Million Dollar Baby. I have two competing forces at work infinitely likeable vs. infinitely unlikable.)
4. Julia Roberts (save for Erin Brockovich, she makes every movie worse for me.)
5. Ryan Gosling