I like how they are stupid. I like how they can be assholes and are flawed. Makes me think these are totally two human beings with no superpowers who definitely could be anyone you might meet in this world today right now. This is why this show can be nominated for best drama AND best scifi/fantasy because it's the story of two realistic characters (who just happen to be scorchingly gorgeous which is very helpful) that has ghosts. As Dean would say "Its very compelling".

But would fandom be so intensely supportive if the leads were not as pretty? I muse on that one from time to time and then I think why am I wasting my precious Sam and Dean watching time here? I should be appreciating the pretty not thinking in What ifs...:)