Wave Race was great on the N64, Blue Storm sucked though. Same goes for 1080, Avalanche was good but not nearly as good as it's predecessors. I think though that the standards for 1080 Snowboarding are really hard to gauge as the only other competition at the time of the original release was Coolboarders for the PS1 which were horrible rehashes over and over again, then you had SSX later on which was a bit more over the top as a snowboarding game. I really liked the 1080 games because they felt more traditional in design, SSX is fun in it's own unique way because they try to go for the flash and the flare, rather then the substance.
I'd still enjoy seeing either of these franchises brought back to life, and really I'd love to see a new 1080 Snowboarding game, I never could pull off some of those tricks in the old games and new game physics would give the game more control flow.