Attack of the Clones is the only Star Wars film I hate. Star Wars and The Empire Strikes Back are great, Return of the Jedi and The Force Awakens are good, The Phantom Menace and Revenge of the Sith are mediocre, but Attack of the Clones is freaking terrible.
I’m surprised you would say that Sith and TPM are mediocre while simultaneously hating Clones. I always felt like the prequels were all the same for the most part. TPM is the most watchable of the three for me, but I ultimately consider them all to be completely worthless.
EDIT: Basically, I don’t see how someone could find enjoyment in some prequels but hate others.