Hey, that could be a great one, too, though I (or Marvel) would probably want to throw in a Wolverine team-up, since they both fought in World War II...
1 - Scott has been wearing black going to the team uniforms all the way to Claremont, only switching to blue for X-Factor and the Jim Lee suit. Then...
The Sentient Armor! Like the Venom symbiote with Spider-Man, but up to 11 and then some! Oh, not to mention the later/more recent comics having Tony...