Oh me and my Marvel knowledge and love, it honestly differs so much from movie to movie. To answer the question, no I'm nowhere near seeing all of the movies and I don't even watch shows, but I still did watch a few of them and as anywhere else liked some more than others.
And it is honestly very hard to choose my absolute favourite one. I mean Ant-Man (or Paul Rudd in general) is funny, Captain America is pretty much the humble boy from down the street, Iron man is just Iron man and Spider-Man is a teenager, relatable and great to watch. So yea, honestly don't know what to pick yet, I'd need more categories... But I'm sure I'll figure out something by the time I post this, we'll all just have to see