Rock Band or Guitar Hero?

[HFK]

I have a 360 and Guitar Hero III but want to get the whole band setup. So does anybody have any opinions on Rock Band World Tour and Guitar Hero World Tour? What are the differences and can you use the two interchangably? Any opinion on which drums are better, this is the main reason I am getting one of the two so biggest question is can I use one drum set between the two games.

 

These are expensive games so hopefully someone can steer me in the right direction, I would hate to feel I wasted my money on the wrong setup because I'm not buying another.

[Hyper_Eye]

This has been well discussed. You wouldn't have even had to go to the second page to find the thread as it is only a few down from this one: http://www.atariage.com/forums/index.php?showtopic=137518

[HFK]

Nevermind.