After looking at quite a few of the E3 trailers, the games I have seen for the Wii U could be pulled off by the PS3. The one advantage that the Wii U does have is it handles anti-aliasing much better, which leads to a smoother looking game. For Nintendo's sake, they had better hope that the tablet really appeals to the casual market like the Wii-mote did. And that they are more than $50-$100 cheaper than the NeXbox and PS4.

Batman, Rayman Legends, and Assassin's Creed all looked really awesome on Wii U. Everything else looked like any other HD console game.

We are trying to discuss the Wii U, logic is stricly forbidden =P

Honestly in terms of raw power the Wii U probably will end up closer to 360/PS3 than 720/PS4. However the Wii U has quite a lot of features that could make it's games look closer to those of the PS4/720 than the 360/PS3. 

The Gpu is much more modern and has some added on features we don't fully know about yet. The memory has increased enough to provide a nice bump in textures. The dedicated audio dsp will mean that the cpu doesn't have to handle it. The tesselation unit will provide a nice visual bump (I believe the 360 did have one but it was almost never used and quite insubstantial). 

The Wii U certainly has enough going on that when developers start using it more efficiently it will be able to provide much better looking games than the PS3/360. The big question really is how many developers outside of Nintendo will?

P.S. As an aside and to kinda help pokeclaudel (EDIT:Sorry there Nintendopie lol. Was looking at quotes and got mixed up) out I will post a screenshot of SMG2 being run in HD on the dolphin. Keep in mind the game itself looks the same (textures, effects etc) only in HD. Although I don't actually agree with his point that SMG1 looked as good as anything out at the time on 360/PS3 (it didn't). I will say though that the SMG games being run in HD (not something the Wii itself was capable of) could probably pass as 360/PS3 games. Just not high production value ones 

Being a PC Gamer, i never have to wonder about next gen ;)

Eh? XD I wasn't the one thinking that. The person you are looking for is PokeClaudel. Thanks anyway!

(I know that the 360/PS3 do, indeed, look better than the Wii in all standards.)

Irrelavent. 

Back on topic: I've seen nothing next gen about it, just catching up to this gen. Maybe the tablet controller or whatever but that's about it. 

Well, if you recall, Nintendo consulted third parties when designing the WiiU. They went out of their way to ask a variety of third-party developers what they wanted in a system to develop for and why they didn't develop more for the Wii. They built not only the dev kits, the controllers, and the graphical power, but also the actual interior structure itself (ie, everything you mentioned in that third part of your post) according to the requests of third parties.

I think a large number of them will be using the efficiency capabilities of the Wii. I know for a fact that EA and Ubi are going to, anyways. If we can get Namco, 2k, and anybody that likes to be published by any of the previous four companies involved, I'll at least be a more-than happy-enough camper.

Spoken like true graphics whores. Its next generation when Nintendo says so

The announcement of a new Nintendo console was the next-gen of disappointment for some. Weren't Nintendo supposed to be third-party by now?