Avengers: Infinity War: This movie gave me a different feel than most movies. In the other ones, you know everything will turn out all good.
Spider-Man: Hey I love all the new spider-man movies especially into the spider verse and homecoming, but let's be honest, none of these spider man movies would be good if this movie didn't happen.
X-Men: Days of Future Past: This movie was amazing but lacked a little interest and saw it on a computer but it was pretty darn good.
X2: X-Men United: It's still the best X-Men movie (in my opinion) and was (for nine years afterwards) the biggest-scale superhero team-up movie ever made.