I don't think you should feel bad about disliking Xavier. He's always been a frustratingly oblique character, as if writers mostly couldn't imagine how a man could believe in peace and co-existence without personally being a cardboard saint. And so patronizing! As someone noted over on marina's DW, dozens of plots in the comics boil down to "Stuff happens and Professor X refuses to let the X-Men know what's going on until the villain shows up and tells them the truth." In the previous movie trilogy, they leaned hard on the fact that Patrick Stewart played Xavier and automatically won the audience over in large part just because hey, it's Patrick Stewart. He gave Xavier some dry humor and some hints of doubt and woe, but mostly Xavier was convinced he was right, and the movies agreed with him, and that was that.

Charles though! Charles is an almost inexplicably horrible person. He reads minds to score with chicks! (And I'm sure he thinks he's being quite the white knight by doing so, since after all, he could just make women think they wanted him, so only cheating a little by totally violating their privacy is practically fair play.) He changes peoples' minds when he doesn't feel like persuading them! I was amazed that the movie went there, and somehow James MacAvoy made it all seem so inevitable and human that now, like you, for the first time he's Charles to me, and I'm kind of in love.