If you own a Wii only then GH is really your only choice it beats RB2 in almost every way possible such as:

-DLC

-Song editor

-better instruments

-Rock band was a half-@$$ port for the Wii, do you really want to trust them?

this is why I think GH:WT is going to stomp RB2

If I were to develop a game on I would put it on Wiiware and call it RAGE this game would be all about aggravation and venting anger. There are 2 modes:

1) Aggravate- In this mode you fight off hordes of unfairly powered-up opponents (think cruel melee/brawl) with an array of annoyances psychologically designed to piss off the player with things like annoying music/sound effects, enemies with an unblock-able attack an vulnerability to only a certain type of attack, weapons that are design with hardware similar to a 360 (meaning red rings of death literally mean death) and many other irritations.

2) Vent- Here all the enemies are pants-on-head retarded with crappy weapons and an interest in shooting butterflies instead of you. Your character will also be insanely powerful and the A button will be known as the F*CK-YOU! button (think final smash but you can use it as much as you want) and every attack will have satisfying crashes or snaps to burn that anger.

you use the Wii-mote and Nunchuk to play (to replace smashing something valuable nearby with spastically flailing the wiimote around) there would be 2-player co-op with several customization options including map-able control schemes.

Anyways that is my idea and I thank you for pretending to read all of this.