I'm not a big fan of Harry Potter the character. I find him to be something of a selfish little jerk at times (and really, fanboy, dont jump on me just because I dont agree with you). Especially in OotP. I was so disgusted with him after his thoughts about Neville on the train (Neville and Luna not being 'cool' enough). Neville has never once doubted Harry, and I dont think Harry appreciates that.
Harry drove me nuts all through HPB.
Anyway, for me, it's the world and the supporting character that make HP books so good.
I didnt start reading HP until after I was forced to watch the first movie. Once I saw the scene at the train station with Fred and George ("Really woman, and you call yourself our mother?") I was completly in love.
Hmm.. I should make a Fred Weasley sig xD