LIST WARZ!
Let's look at 2014, 2015, and announced 2016 big exclusives from an XBOX gamer's point of view. Basically the games that the average XBOX ONE owner would care about.
XBO 2014
Titanfall
Project Spark
Forza Horizon 2
Kinect Sports Rivals
Sunset Overdrive
Halo MCC
XBO 2015
Fable Legends
Smite
Forza 6
Tomb Raider
World of Tanks
Halo 5
XBO 2016
Halo Wars 2
Sea of Thieves
Forza Horizon 3
Crackdown 3
Gears 4
Quantum Break
Scalebound
2016 is the best year to date. If you want to talk about future announcements, potential delays, and all the other problems that could manifest themselves then I totally agree with you. It's not growing as fast as the PS4's lineup. Excluding ports/remasters, it's 2014:5, 2015:5, 2016:7.
But for a Xbox One owner interested in exclusives, it's a solid year.
PS4 2014
Infamous Second Son
FF14
TLOU HD
LPB3
MLB The Show
Driveclub
PS4 2015
SOMA
Beyond 2 Souls HD
Heavy Rain HD
GOW 3 HD
MLB The Show
Bloodborne
The Order 1886
Uncharted Collection
Until Dawn
PS4 2016
Umbrella Corpse
HellBlade
MLB The Show
Dreams
GT7
Horizon Zero Dawn
Ratchet and Clank
Uncharted 4
No Man's Sky
PS4 side of things just for fun! 2014:5, 2015:5, 2016:9
You totally missed my point and your PS4 list is missing quite a few games as well.