Some people have difficult personalities. Usually there are still some thing they are really good at. Try to find out what their strengths are and how you two could complement each other. You don't have to like everybody on your team, you just have to get your work done.
Yep! There are plenty of bullies and/or blowhards out there, always trying to steer the conversation, and they're annoying as hell-- but some of them actually do turn out to be very skilled in certain areas. The rest aren't worth giving the time of day. If you can afford the time & effort to differentiate the two occasionally, though, it could help you.
