Sorry, but I completely disagree. Developers using the piss ass excuse that "the CPU isn't powerful enough" are thinking too linear with their coding, and don't want to bother utilizing the hardware that is being given to them. If they don't want to optimize games for the Wii U because it has a more powerful GPU then the PS3 and 360, that is their problem, not Nintendo's. If they don't want to use the controller because it is different from what the generic run of the mill consoles are using, that is their problem, again, not Nintendo's problem. It's very easy to just say "we don't want to develop for this platform because we don't like having to utilize a different control scheme", but it makes you look like a fucking lazy prick when you either release a game that is poorly done, or runs badly on a more powerful platform then other versions of the game. The Wii U dominates the PS3 and 360 for graphics capabilities, developers just want to use the same mantra of making games for it as they do for the PS3 and 360, thus Wii U games haven't run properly. See, even though the PS3 and 360 have higher clocked processors, the Wii U has a graphics chip that can more then make up for the slightly slower clock speeds on the processor. If 3rd party studios don't want to make the adjustments to optimize the GPGPU, that is their own damn fault, but Nintendo has already shown in tech demos and games already out on the market that the Wii U is more powerful then the current competition.
Also, games have been optimized for the 360 and PS3, since most multiplatform games are designed for those systems since they have a larger install base then gaming PC's do. PC games are pretty poorly optimized and require patching in order to fix, or in a lot of cases, user created mods, to play them properly. If you want to see a prime example of a game that was absolutely shit at release for the PC, Dark Souls is a great one. Locked resolutions, horrible controls that required you to use a controller, rather then allowing users to customize the layout to suit their needs. Sure, you can argue that the game works best with a controller, and it does, but that doesn't excuse the fact that the game was locked at resolutions far below HD, and the game looked like complete balls until someone made a fix that unlocked resolutions and it fixed the textures and scaling, but the game still doesn't look at all like other PC games that were properly developed graphics wise.
Oh, and Skyrim was never optimized for the PS3, people still whine about how poorly done it was and in typical Bethesda fashion, they don't fix the crap they release, the PC version is still riddled with bugs too.