I think the success of PS4 is a testament to the power of 3rd parties and their multiplats. PS4 isn't winning just because it's more powerful. It's winning, because due to this extra power, 3rd party multiplats look better on it. obviously, there are other reasons why it's such a massacre, but the core reason why this time power translates so strongly into sales is just that. Exclusives play a smaller role than ever, so dominating in the 3rd party space means a lot.
PS. I believe GCN could outmuscle the OG Xbox.
Wii U is a GCN 2 - I called it months before the release!
My Vita to-buy list: The Walking Dead, Persona 4 Golden, Need for Speed: Most Wanted, TearAway, Ys: Memories of Celceta, Muramasa: The Demon Blade, History: Legends of War, FIFA 13, Final Fantasy HD X, X-2, Worms Revolution Extreme, The Amazing Spiderman, Batman: Arkham Origins Blackgate - too many no-gaemz :/
My consoles: PS2 Slim, PS3 Slim 320 GB, PSV 32 GB, Wii, DSi.