I watched it about 12 times for one reason or other. Not including the movies or OVA's which I watched once.
Kill la Kill is also really good. Its overall meaning isn't at deep as GL, but one thing that made it really good were its ties to a bunch of real life stuff that you could both clearly see and were both covered that you really had to know yourself. I never rewatched it, but I did end up rewatching a ton of scenes just to get the references.
Ninja Slayer deserved its hate. GL powered me through KLK's over the top sexualization(which paid off by episode 3), and those are both powering me through NS. The plotline can be really good, and there's a good amount of jokes about anime in general based on its poor animation at times, but overallit could and really should be better for such a melodramatic story. Though its kept my attention.
Little Witch Academia is like Trigger meets Studio Ghibli