Forget the graphics card requirements, the ram requirements alone did the Wii U in. The minimum ram requirement on PC for The Witcher 3 and Assasins Creed Unity is 6 GB of ram and the recommended amount to run the way it should is 8 GB of ram. I am guessing it will be the same for Batman as well.Batman Arkham Knight will be minimum 2GB of ram...but is 4 GB is recommended, so the game should run smoothly on the Xbox One and PS4. Perhaps some negotiations for Arkham Knight could've been made, but graphics requirements could also hamper it, so theres that as well.

 PC requirements (remember this also includes OS space)

http://www.pcgamer.com/the-witcher-3-system-requirements-announced/

http://www.game-debate.com/games/index.php?g_id=17044&game=Batman:%20Arkham%20Knight

http://www.game-debate.com/games/index.php?g_id=17084&game=Assassins%20Creed:%20Unity

Nintendo truly forced the matter out of the hands of AAA third party this gen for sure. Last gen not so much, but current gen for sure...and thats probably where the major political disagreements began for a start.

Are you actually comparing RAM requirements for PC with consoles?

By that logic PS4 and X1 wouldn't be able to run it either since they share their system RAM with the VRAM which is not included in the PC specs.

Far Cry 4 requires at least 4 GB of RAM on PC, yet it still runs just fine on a console with 256 MB of RAM (PS3).

Nah, Wii U isn't even getting the games that are on PS360. I'm sure the specs didn't help, but other issues are bigger.

This. The tech issue is there but some of the publishers/developers have some deep resentment against Nintendo or their idea of Nintendo and don't want to have their best games on Nintendo systems.

This is why most third party games have a separate development team working on Wii U port or they use a port from 360/PS3

Consoles tend to have games tailored to them, so you can't really use the spec requirement of PC versions as a point of reference :p There are plenty of games like TitanFall that require 4GB on PC, but do fine on 512MB on the 360.

That said, it is true that the WiiU's low spec hardware (and architecture) aren't doing it any favors with 3rd parties. It's certainly not the main reason for the lack of support though, it just amplifies the issue.

True although I think alot of its problems source from its specs actually, it determines how people percieve the system and the type of audience who are going to buy games on it. In not providing a notable boost over PS3/360,  3rd party titles had no reason to really sell on it. For people with Major interests in 3rd party games (90% of gamers), the system was never gonna be a primary console choice.

PS3/360 are getting those games because they have 80m+ userbases, the least Wii U could be is easy to port to but  wii U is awkward being GPU heavy like the PS4/X1 but being power PC like PS3/360.

You really can't compare RAM requirements for the PC versions with consoles. As several others pointed, games like Shadow of Mordor have beefy requirements but work on PS360.

The main thing here is that all current 8th gen games could be done on PS360. Just scale it back a little, and it's there. Well, going with that logic, we could port it to PS2 too. It would be just more expensive to do because you would need a more severe rework, and that's the point.

The issue with Wii U is that some games down the road this gen will demand more than a simple downgrade to run on it. Devs will need to rework a lot of things to fit the game there, and that costs more to do.

I see it as more related to the fact that 3rd party games don't sell well on Nintendo consoles because most of the fanbase is with MS/Sony.

But there is some problems in the relation between Nintendo and 3rd parties, but that's Nintendo fault. They were damn nazis during the NES days and affected severely 3rd parties profits with their dictatorial and crazy rules. With the modern budgets, that would kill them. The rise of Sony just happened because 3rd parties needed to push another company to the top to survive. Nintendo tought their games were the only thing that mattered, 3rd parties tought their games were the most important things. 3rd parties were correct.