The Wii is more powerful than any of the current generation consoles so to say why not just use the PS2 is silly in my opinion. The PS2 was less powerful than the GC and a lot of games were still developed for it that were considered cutting edge. I think the same developers that pushed the PS2 to it's limits to make stunning games could pull off the same trick much easier on the Wii. In the end the power of a system does not mean anything to me anyway. It's the talent of the programmers and how they utilize the power of a system that truly matters.