Which Hero you hate playing at first, but now love?

For me, I hated playing Muradin the first few times. Maybe because I was accustomed to playing ranged Heroes. So his melee style kind of threw me off a bit. Since i wanted to get all my Heroes to lvl 5, i decided to pick him up again. I read all the guides on Muradin I could find, and now have so much success on him that he's quickly becomes my top 5 favorite Heroes :)