I reeeeaally hate Kabuto. Not now, right now he's actually pretty cool. It's the "servant" Kabuto that I hated, particularly through the fillers. He just seemed like such a hack/moder.
"Oh, I'm just as strong as Kakashi, if not stronger. Oh, I can easily take out several ANBU. Oh, this isn't my real body, this one is. HAHA JUST KIDDING, this is my real body.. now time to do some James Bonding."
"Oh, I can figure out Tsunade's technique in only a few minutes. Oh, that rasengan really hurt me, good thing I can heal myself without effort. Oh crap, Naruto got me, good thing this isn't really me and actually someone else."
Seriously man... he annoyed the hell out of me.