"Guitar Hero: World Tour introduces some slick looking instruments, a huge soundtrack, and a few surprises, including unlockable musicians like Sting, Ozzy Osbourne, Ted Nugent, and Jimi Hendrix, as well as the ability to create your own tunes.
Not everything is pitch-perfect, however. Online play offers few significant changes from Guitar Hero III, and band versus band battles are more trouble to set up than they are worth. World Tour is neither as user-friendly as Rock Band 2 nor as flexible in terms of downloadable content.
So if you are looking for the most extensive song library and the more complete band experience, Rock Band 2 has to be first on your shopping list. World Tour's most distinguishing feature is its challenge. Its expert setting is sure to bring some wicked grins to those who felt Rock Band 2 unworthy of their plastic peripheral proficiency."
Read more and see the video review at the link.