Finally, I was waiting for you to rip up this game. Honestly, I don't have much against Rock Band (But that's because I live in the USA) and prefer it over Guitar Hero 3, and definitely over World Tour. Maybe if the third game could live up to the caliber of its predecessors I would be able to enjoy it -_-. Anyway, I tried a demo of this and nearly hurled from all the faggotry packed inside (Korn? Linkin Park?! After the Tony Hawk games I thought Neversoft had great tastes in music but apparently I'm wrong!) and this is NOT something I want to waste my cash on. Considering 18 of what I assume to be 45~50 songs are already in Rock Band, World Tour is basically a complete ripoff it. And what's more is that Activision still has the balls to call themselves "Guitar Hero" after making the guitarist just another prick with a guitar. Lastly, it isn't even like playing a real guitar anymore! So the first ones weren't perfect simulations, but since when do you have to slide your fingers all the way up the neck every time you play a chord!? What Activision is to Guitar Hero is basically what George Lucas is to Indiana Jones. Sorry Guitar Hero. The first three games were fun, but I'm not even looking forward to your Metallica edition anymore.
By the way, Yahtzee. Stairway To Heaven is a great song and Led Zepplin may as well be the greatest band in the history of rock, but I don't think it would really work in a Guitar Hero game. Here's what I mean...
http://www.youtube.com/watch?v=BW0hd7jEz3E