If I remember correctly, I think there was a technical breakdown article about that demo that claimed the actual graphical effects shown were nothing very impressive, it's just that the artwork was absolutely amazing.

As for the Batman capture in the OP, all it really proves is that the Wii U is different.

"Now here's where things get really interesting. This next shot, taken from the exploding bell tower scene after Batman's first confrontation with Harley Quinn, demonstrates that the developers of the Wii U game have opted to go off in their own direction in a remarkable manner. We see a very close level of overall parity between Xbox 360, PS3 and the DX11 PC version running at 1080p/max settings. However, Wii U demonstrates a number of changes.

First of all, there are fundamental differences in the lighting model - positioning is different, and some light sources are added, others taken away. Wii U also seems to be sporting motion blur, different settings in the atmospheric rendering, along with the addition of brand new assets to the scene - not just the banners hanging from the tower, but new textures in some places too - it actually seems to be more accurately representing the look of the building when you first make your way towards it after saving Catwoman in the game's first chapter.

 The scene is dramatically transformed but where there are some new additions, we also see cutbacks too. Long-range draw distance appears to be pared back noticeably, while in the mid-distance we see missing buildings, and the introduction of minor new scenery like additional water towers. Curiously, thin geometry seems to be entirely absent in places for some reason. We won't draw definitive conclusions until we're hands-on with actual code but it does seem to suggest that elements have been added and removed to better suit the capabilities of the hardware."    http://www.eurogamer.net/articles/digitalfoundry-vs-wiiu-e3-2012

What is seems like, to me, is that the Wii U has a different set of strengths and weaknesses than the PS3 and 360, probably due to the emphasis being placed on the GPU.  Therefore I don't believe we should be judging the Wii U yet.  The comparisons right now probably aren't very fair, considering that we're dealing with ports constructed by people who are just learning how to work with a new, unfamiliar system.  I think BOTH sides should let it go for now.

Yeah I agree it´s better if we reserve judgement, I´m expecting by the end of next year we can safely know how things will play out.

I think what we have to remember, here, is the trans-generational improvement effect. Here we're talking about end-of-generation games on PS360, albeit not totally optimized (in the vein of the best PS3/360 exclusives), are still made by developers with something on the order of 4-7 years of experience working with the platform, and you're getting matching results (slightly better in some areas, slightly worse in others) made by developers that have only 1-1.5 years experience with the platform.

If this is the Wii U's baseline, then it will definitely improve from here.

the wii started out great.  wii sports was mind blowingly new and refreshing.  mario kart is another i hold in great regard.  but then nintendo kind of stopped focusing on what make the wii so great to me ... motion.  SSBB was good but nothing really innovative.  a broken online (which is now important to me now that i have left college and my friends don't live in the same house as me) didn't help.  games like NSMB wii/donkey kong/monster hunter/the last story/xenogears aren't bad but they aren't what i wanted a wii for.  take out the motion and i'm left with a dated game.   then things like metroid other M were just flat out bad. 

i wanted more in the line of zelda SS.  non mini-games that actually use the main selling point of the wii.  ..but by the time zelda released i turned very anti nintendo.  never played SS even.  the whole "imagine the possibilities" line in particular pisses me off.. i don't feel the eluded to possibilities were ever fully explored on the wii.  i spend an aweful lot on wii hardware (wii, 2x wiimotes nunchucks and motion pluses, classic controller, balance board) for how many games were actually fun imo.

Uhm I don't know how it is with Darksiders 2, but AFAIK everything else was already confirmed to be inferior on WiiU by several reviewers.

singling out the worst looking launch games doesn't really validate your point

kameo elements of power for example looked leaps and bounds above what was done on the prior gen when the 360 launched

what you'ree doing there is pretty disingenuous

Games that are build around very CPU centric consoles and then ported quickly to console with little weaker CPU and it's not surprise that they run little worse. Wii U still has more RAM and more modern GPU so Wii U can absolutely do better graphics than last gen consoles. There just isn't game yet to show it as Nintendo launch games are not that demanding graphically and third party games are quick ports.

Graphical comparison between an optimized graphics of 7 year old machine and a one week machine itself shows the power of WiiU. Isn't the graphics card on the WiiU much better than PS360?

Yeah, I don't understand specs myself; I simply go by what others say and use that to paint my own picture, so to speak. But there are things out side specs that also will play a major role; like Sony's finances. And that's what I base my opinion for next gen on. But for sure; PC>>>>x3ox>>>PS4>>WiiU - so I think that all 3 consoles will be getting the same games and good ports.

I can actually relate to the bolded part.