* Instruments: Rock Band features a full band experience, with players controlling lead guitar, bass guitar, drums, and vocals. Guitar Hero, on the other hand, focuses on just the guitar.
* Gameplay: Rock Band's gameplay is centered around hitting notes on the correct beat, while Guitar Hero's gameplay is more focused on strumming the guitar in time with the music.
* Difficulty: Rock Band is generally considered to be more difficult than Guitar Hero, due to the fact that players need to coordinate four different instruments at once.
* Songs: Rock Band has a wider variety of songs than Guitar Hero, including rock, pop, metal, and alternative music. Guitar Hero, on the other hand, focuses primarily on rock music.
* Multiplayer: Rock Band can be played with up to four players, while Guitar Hero can be played with up to two players.
Ultimately, which game is better depends on your personal preferences. If you're looking for a full band experience with a wide variety of songs, then Rock Band is the way to go. If you're just interested in playing the guitar, then Guitar Hero is a great option.