The con that jumps out to me is that Guy 1 doesn't even want to be friends with you.
~ What are the chances that Guy 1 & 2 are going to remain close friends if you were with 2? Wouldn't that cause some resentment?

What kind of feelings do you have towards Guy 1?
~ Just physical attraction? I hope so, because he kind of sounds like a jerk to me. Just because he says that his friend (Guy 2) likes you doesn't mean that his friend actually cares for you. It could be that Guy 2 would love to simply have sex with you. Sex and caring are NOT the same.

I know you aren't looking for other people to make decisions for you ~ and that's a good thing. Just take my words of warning carefully. I'd stay away from both of them if I were you. Guy 2 would have to do something pretty darn special to make me reconsider.