THDJ is pretty fun, but I know there's so much more to the game since I'm passing by all these grinding rails and shortcuts at all times. Seriously, some of these courses are VERY diverse and have a slew of paths to take.
Red Steel is pretty good so far, with the swordfights being VERY enjoyable. Getting used to the aim takes time, but once you do, you'll prowl the halls like a professional killer. Magnum, FTW!
FYI, only posting this now because a friend and I are swapping off levels in Red Steel.
Also, my Wii is now my GC: I attached 4 wavebird sensors to the top and plugged in the memory cards. The top of the Wii IS a GC.