Naruto fillers I did not mind, pulling the whole Gaara storyline in Shippuuden so far - I did mind. It was like an episode included 3 inhales of oxygen and that was it. It seems to be improving now.
Bleach fillers were horrific though. But Bleach is better than Naruto generally.
amen to bleach filler being horrific. i hated Naruto filler more simply because there was 85 episodes of spoiler :|. i only watched maybe 10-15 episodes of Bleach filler before i said "fuck it."
as for Shippuuden, trust me. bear with it and once Sasuke goes all villain mastermind and forms his own posse and Naruto and crew start finally kicking Akatsuki ass and taking names and we finally find out who Naruto's father is and who the leader of the Akatsuki is (and how fucking AWESOME he is), you'll be glad you've stuck with it.
it's just insane once it gets past the Gaara thing and Naruto learns how to use an elemental chakra. after that, the story is fucking pimp. Sai is the best new character.
oh and for people that don't read the manga but like the show.
OH MY GOD
Naruto has the most fucking amazing ability, but he's FORBIDDEN to use it. just to let you know how powerful it is, he almost kills Jiraiya the first time he uses it and he almost kills Orochimaru when he uses it and it takes the good guys to bring him back before he actually kills him.
oh, did i mention Sai is awesome.