You're not the first fan I've seen who says that. And I always ask myself: "how could you not know its Rogue, those are her colours?" Regardless of what costume my faves were wearing I always knew who they were.
I personally love her original green hooded costume as that was what she was wearing in the very first XM book I bought (surprisingly I never really liked any of the modern redesigns) so I totally get the love and connection for the 90's look...but I will be the first to admit it's outdated and could do with a proper and decent update.