You say support from developers?
Ea, Activision, Rare are not exclusive to Microsoft, (Yeah microsoft has payed out alot of money to get map packs a few days earlier. Which has happened before and I hardly think getting a map pack 48 hours earlier is a big bargaining chip)
Playstation has naughtydog, quantic dream, sucker punch... not to mention all the indie developers that have moved away from Microsoft because of their ridiculous rules and percentage cuts.
Also with developers making money from dlc, micro-transactions they will side with the console that sells the most, or do what most developers do, which is go multiplatform like ubisoft, square enix etc..
Going from the internet's reaction (reddit etc) its the Xbone that's going to struggle. Just looking at my facebook newsfeed this morning 6 of my friends have now cancelled their xbox pre-orders after that sony press conference.
Oh and no Cod game is the biggest selling game of all time, Nor is Cod as a franchise
EDIT: and before people jump on the xbox "family entertainment features" like TV etc bandwagon, look how much of that is USA only.