I personally hate fillers, I mainly watch anime to see how they go with the animation, and I hate waiting for them to animate canon. I hated going through 4-5 seasons of filler in Bleach. At least in Naruto they keep the ninja theme going in the fillers, but still rather pointless if you ask me. I'd rather them have longer waiting periods between canon eps, than them wasting time on filler eps. Imagine the quality of animation if they spent their time on canon.