I disagree with Forbes with regards to both consoles. The systems are barely a year old and already we've got the following...
PS4
Killzone Shadowfall
Knack
The Last of Us Remastered
MLB The Show
Driveclub
Final Fantasy 14 A Realm Reborn
Infamous Second Son/First Light
Resogun
Little Big Planet 3
X1
Halo MCC
Sunset Overdrive
Titanfall
Forza 5
Forza Horizon 2
Killer Instinct Seasons 1 and 2
Max:The Curse of Brotherhood
Dead rising 3
D4
Ryse
Now I realize those games won't appeal to everyone but that is a solid list of exclusives for both consoles, particularly considering how young they both still are. Plus for the remainder of this year you have titles coming like Bloodborne, Until Dawn, Uncharted 4, Dragon Quest Heroes, MLB The Show 2015, No Man's Sky, The Tomorrow Children, Tearaway Unfolded, Alien Nation, etc on PS4 and for X1 you have Halo 5, Quantum Break, Forza 6, Ori and the Blind Forest, Scalebound, Fable Legends, etc.