My personal favorite for flawed reasons is Madoka because I was there for the live reactions to the infamous episode and it was magical watching everyone lose their shit. It was also my re-introduction to anime after being shamed out of it for liking sailor moon as a kid.
Imo Utena fandom is much better than eva fandom cause despite their show being an actual deconstruction they dont focus too much on it or bring it up as a measure of matureness and quality while Eva fandom does circlejerk over it being a deconstruction to an annoying degree while it isnt