Well to me and many others ROTS has a few redeeming factors especially the score being the 2nd best of the PT. AOTC doesn’t even have that good of a score much less anything else. Say what you will about the Mace vs Sidious duel but that was a lot better than Anakin vs Dooku and especially Yoda vs Dooku. I at least found the rematch between Anakin and Dooku and some of the duel between Anakin and Obi-Wan to be entertaining.
EDIT: And your Batman comparison is invalid, because Batman Returns is a fantastic film, being compared to Batman and Robin, which is a massive crap-fest. The Terminator one works though, as both of those you mentioned are crap-fests.
Fantastic? It’s worse than the painfully average droll that was Batman 89, but nostalgia is one hell of a drug. I’ll let someone else speak for me.
It has a 7/10 on imdb and 80% on Rotten Tomatoes from critics with 73% from the audience. I think 8.5 and above should count as fantastic but that’s just me.
Batman Returns is great, fantastic or no.