Yes, Deus Ex is good. Can't speak for the quality of the port yet, obviously, but the game itself is very good.

Better than Wii; about the same as Gamecube (aka spotty at best but featuring a few key titles).

while it's nice that the Wii U is getting some 3rd party support, the true testament will come via sales; some listed in you OP already have an established fanbase for the PS3/360 and have been able for them for quite some time; Deus EX: HR, ME3, Batman: AC(though they come with added content I don't think it's something that will break the bank)

I'm not sure how relevant it is that you can get most of the games on your 360.  It's cross platform support that people are complaining about. If those games weren't also coming to last gen systems these games wouldn't be considered cross platform. Nintendo's first and 2nd party support is where you will get games which aren't coming to other consoles.

I think GameCube had better third party support.

Resident Evil (franchise exclusivity)
Viewtiful Joe 1/2, Killer 7, P.N. 03, Final Fantasy: Crystal Chronicles, Metal Gear Solid: Twin Snakes, Tales of Symphonia, Baten Kaitos, plus a good deal of multiplats like Soul Calibur 2, NBA Street, SSX, Beyond Good & Evil, Time Splitters 2, 007 Nightfire, etc.

I liked a lot ME3 so if the game is as good as that then I'll buy.

So it looks like Wii U wil get solid multiplat support from western devs and I have a feeling we will see some exclusives from japanese devs like Sega, Capcom, Square, Namco just like the Wii.

You're comparing lifetime to just wiiu year one though.  Once the wiiu takes off this Christmas it should help their 3rd parties out a bit by increasing the base to sell games into.   I guess Project X doesn't count because Nintendo bought the Baten Kaitos creator and now gets all of thier games.  I wouldn't list Nightfire as a quality game I already decided not to list the James Bond game on wiiu cuz it sucks and not worth mentioning either.

Nightfire was a decent game, much better than the Bond game on Wii U. I hope Nintendo buys the Bond license, at least for Nintendo platforms, as apparently Activision opted not to renew their Bond contract.

I should have included more of that stuff.  Remember this is just year one of Wiiu compared to Wii lifetime. Wiiu also got Zombi U, Monster Hunter Tri, Shen Megami X Fire Emblem, and Lego City Undercover.

I think you're gonna to see some nice support from 3rd parties on cross platform titles. It won't be like the wii where you often would have a 6 month period with nothing even remotely worth playing coming out. Most 3rd party devs will support the last gen systems for several years and it will only make sense to move many of these titles also to the wiiu after it takes off this christmas. Yeah if Nintendo is planning this to be their console for the next 6 years the support will eventually taper off but I see Nintendo launching something more powerfull than the PS4 in 4 years at the latest.  They're rebuilding their core following this gen.

Compared to the wii where you'd have  christmas where the only quality title was like Animal Crossing this is going to be an amazing Christmas for wiiu. There will be several multiplats to choose from and  some of the following from Nintendo. Mario kart, Wind Waker HD, Pikmin 3, Mario 3d, Yoshi's Yarn, Bayonetta 2.  I eventually bought a 360 last gen because there came a point where you only had games that were like 6 out 7 out of 10 to play on the wii.  That won't be the case with Wiiu. If you're a Nintendo fan and want to be loyal the wiiu will keep use busy.