You can't even compare GTA IV to LoZ:OoT because those games are targeted torwards two completely different audiences.
I'm watching GTA4 streams right now and have been since Saturday and from all of this praise that I keep hearing about (perfect scores and such), it just doesn't seem perfect. GTA4 is a 9.5 at best. And that multiplayer mode IS THE BEST PART.
Generation 8 Predictions so far.....(as of 9/2013)
Console that will sell most: Nintendo Wii U
Who will sell more consoles between Microsoft/SONY: SONY