There are Marvel films that I think are really good, but for some reason, they have low rewatchability to me. I really liked Black Panther, particularly the complexity of the villain, but I don't really have an interest in watching it again.
I think that the action in the MCU is a little floaty and CG for my taste. I don't find any of the action sequences particularly compelling. By far my favorite part of the MCU is the banter, and the movies that I watch over again, those are the parts I like. RDJ riffing with Ruffalo and science, for example, in the Avengers. I like that stuff.
For sure about the banter, it's probably the reason Thor 3 was so popular. It wasn't comic accurate, it even makes plot holes, but the banter is so good in it none of that matters.