I think in the long run Rare might really show something. I didn't really see Rare blast off on the NES, and on the SNES you got KI and DKC, and then the N64 is when they finally gunned us down with their games.
Personally other than the shooting games and even few others I don't think there was a Rare games that wasn't strongly influenced by a Nintendo games. Rare's best bet are their shooting games, but when I look at Xbox 360 you're getting Perfect Dark, Quake, Halo, Ghost Recon, Half-Life, etc Oh gosh where is the improvement?