Actually . . . the VS get the best-looking MAX armor.
The other two are cool in an industrial-techno-futuristic sort of way.
But the VS MAX is just, well, SEXY. Besides, purple is damn cool (GO VIKINGS) and damn funky, to boot.
The VS will be invited to all the cool parties, and the VS MAX armors will be sexing all of the wimmins, and the TR and the NC will be standing around looking FEARSOME, and looking real competent and on-edge and constipated, which is nice and everything but all of their ladies are telling them "Oh, hey baby I have to go over to my girlfriend's house, why don't you watch the hologram or something", and then they hop a Galaxy with their girls and head on over to the VS party at the jumpgate. Meanwhile, the VS MAX is jetting up on top of an AMS and leading the dance, while the VS light armor spins and the Infiltrators are feeling up everyone's dance partners from behind.
The VS will own you all. Sorry, that's just the way it has to be. I mean seriously -- how can you have FUN in NC/TR gear?