My novel has three main characters.
Roenan is the main protagonist. He is very upfront, knows what he wants, and will usually keep going until he gets it. He's very friendly and can make friends with anybody in the room, no matter what their personality is. I think because of this, we'd get along very well. But I'm positive I would get irritated by his guy problems.
Drakke is the second main. He is probably a bit depressed and incredibly insecure about himself, but he is able to hide it all behind a facade of confidence and humor. I've pretty much given him most of my qualities (whereas, Roenan is someone who I admire to be more like). I think that we would get along really well since we are similar, but I also would have a bit of a guard up when around him. He can be mysterious and doesn't reveal too much about himself unless you force it out of him.
Saive is the third main. He is fiery, stubborn, short-tempered, and cold toward most people. The only people he can get along with are the ones who spend a long time penetrating the thick wall he's built around himself. I think I'd probably hate him. I'm sure I'd try to talk to him, he'd be snarky at me, and I'd never want to talk to him again. lol