They're not though, at least not 1 and 2. 3 and 4 are definitely weaker. But its all subjective. Cool for you that you think MOS is a great movie. I just don't see it.
I think part of the problem is that there's such an oversaturation of superhero/comic book movies these days. There's a new one out every six months or so. They're just starting to seem repetitive to me.