Anyone aged 12+ who is into gaming would use a PS3 or 360 over a Wii U, they are completely different products.
Wealready know they will be a mile better in terms of hardware specs.
I honestly don't see the obsession with specs though tbh, its the games and gameplay that make any system. The only thing that really matters about the hardware nowdays is whether or not its easy to develop for, and it will support evolutionary progress.
Specs allow new game play experiences if used properly, destructible environments etc. Whilst specs shouldn't be the only thing that matters there's no excuse for Nintendo putting so much of the machines cost into the controller and having poor specs for the actual console.
To be fair as long as Nintendo fix the OS and the hard locks, I don't actually care about the power of the system etc. I only buy Nintendo consoles for first party games any way.