As the X-Men film series progressed, so did the look of the "uniforms" that the characters wore...sort of. Storm's cape got a bit shorter and she went from pleather to blue nylon with yellow trim. Beast's jacket also had a bit more personality. But that's about it. Everyone else donned the traditional black pleather get-up, sparking an on-going debate about whether or not our favorite mutants should be wearing the "costumes" we are all accustomed from the comics.
I can see both sides of the argument: on one hand, do we really want to see Hugh Jackman running around in bright blue and yellow spandex with giant pokey ears off the top? Or Iceman skiing around in tight pants, no shirt and a bandana? On the other hand, the current look for the characters has no personality at all with the exception of a different color of trim, everyone has the same look, including some of the "villains" (Multiple Man in "The Last Stand").
So, is there a happy medium for this situation? I think there is. For instance, take a look at this image of Wolverine from the video Game "X-Men Legends II." The get-up has some personality to it, but I don't think it'd look terrible if it were done on the big screen.
How about another character, like Storm. She has had many looks over the years, from African queen to 80's punk, but I think there is an in between that'd look good on screen.
However, I think one needs to be careful with certain characters, like Nightcrawler for example. Do we really want to see Alan Cumming dressed like this?
Although Mr. Cumming might enjoy the idea, it would not translate well to the big screen. I thought his uniform was done well in X2.
I don't think it'd be asking too much to allow the members of the X-Men to have a little personality in how they look. Not to mention it'd help bring back the look of the X-Men that we all want to see.