i didn't see anything really interesting on the xbox. x360 games that i can think of:
gears of war and lost planet both look like generic shooters to me, with geow being hyped for the graphics and lp for being a capcom game.
dead rising seems cumbersome and i'm not really into horror or zombie games in general.
then there's the collective of fps/racers which the original xbox already had.
blue dragon seems to be the exception, but it reminds of dq8 which i hated, so it's not really exciting. there's also dmc4 and gta4 (depending on how much of an improvement it is) but that's available on the ps3. either way, it's not enough to get me interested, let alone justify a purchase.
as for that list of yours, i had sf3, ggx2, samurai showdown tenkaichi kenkakuten, kofxi, svc:chaos and psychonauts on my ps2. psychonauts, despite looking worse than the xbox version, played fine off hd loader, so don't start it. everything else was better because of the controller alone, and i have 0 interest in the other games.
also, i don't mean to take jabs at fps or racers, i play them as well. but they aren't the kind of games that sell me on my systems.