Rotten Tomatoes - Comment #4,065,823

Psh, Marvel and Transformers are on two totally different levels. Transformers is virtually pornographic if you're into chicks or robots, has no effort to create a compelling script, and is just constant Bayhem. Marvel is just popcorny as fuck, but the stories still work, the characters are pretty varied, and the effects are made by artists instead of an assembly line of toymaking robots. I mean, Iron Man's armor looks good, RDJ is legit compelling as Stark, etc. And Captain America is pretty great, definitely better than the actor's last superhero role. Plus Guardians.

They actually HAVE good movies is my point, but definitely the quality has been sliding since the very beginning.

So what you are saying is, they got progressively worse