Owen Wilson, Ben Affleck, Ben Stiller, Vince Vaughn and Paul Rudd
Twentieth Century FOX, Everett (4)
The sparks fly between Jennifer Aniston
and Gerard Butler
in their new film The Bounty Hunter
, which opens March 19. All those fireworks got us thinking: Of all Aniston's hot leading men through the years, with which guy did she have the best chemistry with?