Originally Posted by droidwarrior
Well when you've got 9 teammates (X2) characters having them all together on screen at the same time would be ridiculously hard.
The Avengers had that one key scene of them all together back to back, other than that they also split into mini squads or solos and weren't all on screen foghtinh side by side.
I'd say the key difference between X-Men and Avengers on film, is X-Men is more about personal stories and Avengers is about big spectacle and conflict of egos.
The whole final battle had them working in a coordinated effort talking to each other all the while. The long shot showing each of them doing their thing exemplified that. They all had really heroic or iconic shots.