I personally like them both but I think that naruto is the better of the two because the plot seems to have more meaning to it than bleach's. Bleach has great, action packed fights that are amazingly well drawn but its plot leaves something to be desired and there are alot of inconsistencies (I know Naruto has some too but not as many). Anyways Naruto has its faults too and I know its plot isnt always perfect but Kubo really doesn't do a great job of letting his characters live up to the expectations he's built up for them (e.g the Arrancar just being completely destroyed by Aizen or Aizen's "make it up as he goes" plans).