I'd personally take out DOA 4, as I understand it's popularity but it has one of the worst engines of all the fighters listed. It gets so centered around launching, since that's the only way to get assured damage. (Of course most 3D fighters focus on launching, DOA makes it the only real way to get the upper hand since everything else can be parried mid combo.)
I've replace Killer Instinct with KoF98, I mean that game even still has tournaments for it internationally, it really deserves a spot up there.
I would have probably opted for Soul Calibur 2, over the first one, the third game has too many bugs to be worth adding to the list.
While Marvel vs Capcom 2 still has a huge community in the U.S. scene, it's not really as popular as many of the other games on the list worldwide. I'd keep it on there, but I'd certainly bump it down a few pegs.
Super Smash Bros I'd take off the list, and not because I think it's shallow. I just don't think it fits in cleanly into such a list, every other game is analogous of each other, you could take a still of all their screens and identify the fact they are all setup in similar manners. Super Smash Bros could get a mention, but I'd still say it was a different beast.