I get the impression that some think people are debating Wii U's hardware because they're desperately trying to believe that there is a magic secret which, once understood, will make it transform into Orbis/Durango.
Most of the debate over it is, I think, more centered around determining if it's powerful and capable enough for Nintendo's stated goals: "good enough" power that isn't entirely left behind next gen, with value focusing on the unique things the platform brings to the table.
The irony for me is that most of the people I know (not all, but most) who are, or are thinking of, buying a Wii U, have gaming PCs which outclass the current HD consoles by a mile and are playing "next gen" right now. They are interested in Wii U because it's Wii U, not because they're hoping it is something it isn't.