i say sam cuz i think that deans always a little bitch when he gets around bobby and sams just kinda nice to him so i would definetly have to say sam but you never know bobby might like bitches

Both really .....but if i had to choose!

Only because Bobby and Dean seem to talk to each other more...like when Dean saves Bobby for that scary dream of his wife - Dean says "your like a father to me" - awwwwwwww SO cute! I think Bobby would probably be slightly more at a loss if Dean died - than if Sam died.

This is a stupid question.
Bobby likes the Guys the same. He wouldn't choose one over the other.

nah, i think he prefers dean actually :/ poor sammy :(

I think he thinks of both boys as his sons, and he wouldn't pick one over the other. But he seems to be able to draw Dean out of his shell just a little.

I feel like Bobby can't pick between the boys, he is so much like a father figure to them that I don't think he has a favorite. And I agree with shomill, he does seem to be able to get Dean to open up more than any one else. Kinda sweet. :D