I think the best exclusive game will be Forza on the XBO, but from what I've read they've taken loads of tracks and cars out so they can fleece people for even more money with DLC, so I wouldn't have bought it anyway.
Definitely a poor launch lineup, but with The Order, Infamous, Titanfall, Halo 5, Watchdogs, Division, there's plenty of stuff next year to look forward to.