He's an intriguing character and as much as I dislike him, I don't think there's anything wrong with you if you like him. He's a gray character so it makes sense for the fandom to be divided.
If you solely watched the movies and never got to experience the pure joy that is book Hermione, you wouldn't know what an absolute menace she is. Sure, she may seem like a sweet little nerd at first. But get on her bad side, and she's not above committing war crimes to put you in your place.