Hah, how does new Infinity Ward suck any more than old Infinity Ward? Modern Warfare 2 is just as-bad as Modern Warfare 3. At least Treyarch's games have steadily improved, to the point that I'd even call Black Ops and Black Ops II two of the better installments this generation. I'd probably put it:
1. Modern Warfare
2. Black Ops 2
3. Black Ops
4. Call of Duty 2
5. Ghosts
6. Modern Warfare 2
7. Modern Warfare 3
8. World at War
9. Call of Duty 3
I put Ghosts where I did based on expectations. I don't like what I've heard, but I just can't imagine that it'll be worse than the MW sequels.
That aside, I think you're overestimating stuff here a bit. Yes, Microsoft has offered the Azure stuff, but you can't really expect cross-platform games to take advantage of that, especially if it pigeonholes a game into always-online like Titanfall will (what with the recent backlash and all about the always-online console idea). Also, to brag how the Microsoft first-party stuff will take great advantage of the hardware ignores that the Sony stuff is certain to do the same. I mean, we ARE talking about a 720p-vs-1080p difference here, so taking good advantage of Xbox One hardware might just pull them even, while Sony-related optimization could keep a noticeable gap there (though perhaps smaller than the current one).