I just thought about it, because he never went with Sam or Dean to a Baseball game, but he sold his soul for Dean... What do you think?

well he spent more time with them for starters. and i guess he did say he never wanted this life for them, but he did his best and he loved his boys. he wouldve mentioned adam earlier or spent a lot more time with him if he cared for him as much as sam or dean i think

Wow, this is a good point :)

i think he loved them all, not in the same way, but equally

He must have loved Adam a lot 'cause after all he was his son, but.. I just can't get myself to pick the "tied" option in this pick 'cause Sam & Dean are the "main" brothers and Adam kind of came out of nowhere.

I don't think I can really answer this one. I think he loved them all greatly just in different ways. But I don't think he was off worrying about Adam when he was in college like he did for Sam when he went to Stanford, even though Sam actually knew hw to take care of himself. I don't think he ever tied the two together but I think that if Adam had been dying he would have done the same as he did for Dean. because John is a family man and loves his family more than anythign. even if he wasn't always with them. I think once he learned about Adam he was as much his son as Sam and Dean...I don't know. I'm on the fence about this one

I have no idea how I missed this question. lol

Anyway if you had kids you would know that you love them all equally. (i'm not saying that in a rude way although typing it does make it sound bitchy, sorry, I tried to re-word it three times and it still sounded bad :P I don't have kids either ;) it's just what i've heard from parents and grandparents and such) So yes, I think he loved Adam as much as he loved Sam and Dean. perhaps in a different way, but the love was still there.

they were all his children.he didn't know Adam that long but i think he loved him and he tried to spent time with him!

Yeah, I think he loved them equally but perhaps not in the same way. He protected Adam and saw him/spent time with him when he could. And he raised Dean and Sam as best he could on his own and he did give his soul for Dean. I think that says a lot.