Spider-Man 2
I've seen this movie about 3 times now in the span of a few months & i literally never get tired of rewatching it.
While other superhero movies start with big explosions & cgi fights, Spider-Man 2 starts with Peter Parker suffering from his personal struggles while trying to balance his two lives & be the responsible savior of the city. I think the reason the movie works so well is because this is more a Peter Parker story than a Spider-Man one. It's as much a character study drama as it is a superhero blockbuster & it works well as both.
Bought my No Way Home tickets earlier today & i can't wait to see Tobey back, don't think NWH will top this movie but to be fair has any movie ever topped Spider-Man 2?