User blog comment:Hollow Mario/Worst Filler and Original arc/@comment-1268838-20150113074943

I don't think anything more needs to be said in regards to the Invading Army arc... but I will say some stuff anyway. Honestly, using Mod Souls for villains (the Reigai more specifically) was a rather neat idea, wasted on clones, one of the most cliched concepts possible. They already had two original characters with their own Zanpakuto - why not go the full mile and create an entire cast of new villains? Hell, even the Bounts managed to be more interesting. Don't get me started on the main antagonist's ridiculously convoluted, if not outright nonsensical goal and backstory.

As for the worst canon arc, I'm going to go out on a limb and name the Arrancar arc. Don't get me wrong, it had a lot of great moments, but I still feel it was the weakest in terms of storytelling. I don't think Kubo's habit of writing on the fly is more apparent in any other arc than in this one. Maybe it's simply because the arc as a whole was monstrously huge, but there is just a large amount of room left for inconsistency.