Naruto is far far better than Bleach, but come on.
Really? They're both pretty fucking terrible.
Nah, Naruto is at it's core a really good shounen series, but it's been brought down by the fact that almost every character who is not Naruto himself is pretty awful, that the author loves to focus on these characters instead of the title character, and that the story fell apart after the halfway point.
If someone made an edited version of the Naruto manga where they cut out all the useless/bad crap (aka, all the sasuke chapters), it'd be a great shounen series.
There is good manga in there and the art and action are really nice, which makes it work well for the CC2 games.
Otoh, Bleach has no redeeming values at all since the Soul Society arc besides its art and action. The characters/story are trash and the manga will keep going forever with no point because he just makes shit up as he goes.