User blog comment:Miskos3/Chapter 478: Stealth, Review/@comment-25572451-20160321022929/@comment-7418318-20160321202846

If you want a good filler, look at Noragami. There people don't even notice that it's filler unless they read the manga first.

Hell, despite having read the manga first, I still had to re-read some chapters to notice changes made in the anmie, because they were to true to the style of the manga.

Shingeki no Kyoujin also has some great filler-scenes added into it as long as you forget about the last two episodes... those two... nevermind.

Naruto? Well... with so goddamn many fillers they just had to make something half-decent at some point. It's nearly impossible to produce only shit all the time, so sooner or later something had to be good. Same for Bleach. But in either anime the vast VAST majority of filler is utter crap... and with utter crap I mean even worse than KotSS and ECS.

And I'm not a big fan of Ice Trail either. If they should turn something into filler material, they should go with the Light Novels first. I don't the Gajeel one, but the first few chapters of Blue Mistral and the Sabertooth spinn-offs looked interesting. Fairy Girls too, but there I only found read one chapter so far, so it's harder to judge that.