The people saying Kenpachi is slow make me rofl. He's been shown to be fast as hell he just doesn't like to use his speed. He also doesn't like to use any real sword technique but he has been shown to be able to block everyones attacks....even when they're coming at him 100's of times per second. He usually lets them hit him b/c it can't kill him but he is skilled enough to block them when he thinks it's necessary. So we have Kenpachi who is stronger, fast, considered the best warrior in the Bleachverse, has access to all that magical shit soul reapers can cast, and who hasn't even reached his full power level yet. Exactly how are they going to beat him? He's fast enough to cut their heads off before hey have a chance to react (especially if his spiritual pressure makes it cumbersome for them to move).