Why do you hate this movie? I love this movie
Probably for the same reasons most all of us will love one version of a film, but not the other version...
People tend to bond to the first film version they see (if they like it)...then when they watch another version of the same film there's no way it can be match the first version, so their mind decides it's inferior.
I see you recently watched the movie
Cats and rated it really low. I bet if you've never seen the stage play of
Cats (which I believe you said you loved) then you'd have nothing to compare
Cats the movie too, and so the movie would've received a higher rating from you. That would be true of me with
Little Shop of Horrors. The original version is the one I seen first and bonded to, it then became my template for what
Little Shop of Horrors should be like. So when I then years later see a completely different version, that second version didn't match my idea of what the film should be, thus my brain decided it was inferior to the original first version.
Hopefully that all makes sense.