All-Star Superman 3.5/10
You’re one of the few people I’ve ever seen rate this series so low.
(I have never read All-Star Superman, BTW, so I’m not making a criticism here.)
I’m definitely in the minority but I feel it didn’t really have one narrative or any real structure, I prefer comics that are less bloated and actually build up to something but this had so many characters, villains, and subplots that I just stopped caring. The art and writing were good though, don’t get me wrong there.