Green Day: Rock Band (Wii) vs Rock Band 3 (Wii)

Green Day: Rock Band is a music video game developed by Harmonix Music Systems, published by MTV Games and distributed by Electronic Arts. It is the fifth major console release in the Rock Band music video game series and, like other games in the series, it allows players to simulate the playing of rock music by using controllers shaped like musical instruments.
The game's soundtrack consists of songs by the popular punk rock group Green Day. Green Day: Rock Band will feature virtual depictions of the three band members performing the songs in new venues designed for the game. The game will incorporate existing Green Day songs already released for the Rock Band series as downloadable content, and will allow players to export its full tracklist to the other Rock Band game titles except The Beatles: Rock Band.

Rock Band™3 is the next generation of the ultimate social and interactive music gaming platform developed by the category's leading pioneers, Harmonix Music Systems. Featuring innovative game modes and instruments, Rock Band 3 will change the way fans think about and play music games.

This next iteration in the Rock Band platform has something for everyone. Master an instrument through the gameplay fun of "Rock Band Pro," add another member to your band with a keyboard controller, or experience 83 new hits from 83 unique bands, along with your current library of songs from the over 2,000 songs available to date and counting.