I'm a pretty solid no. The first time I saw The Avengers, I thought it was borderline unwatchable. I remembered literally nothing about it the next day, which for me is a very bad sign. Years later, I watched it with my 13-year-old daughter which was more enjoyable, if only because of her enthusiasm.
I just don't get the Joss Whedon love, I guess. To me, everything he does looks and feels like a TV show. He just doesn't have a cinema sensibility, in my opinion.