Below you will find a list of all of the major games shown at E3 that a lot of people are confused about concerning exclusivity for both consoles. Lets lets over which games will be coming to what console.
*This is in alphabetical order and does't not include every single game*
Asassin's Creed IV: Black Flag - Xbox One, PS4, Xbox360, PS3, Wii U, PC
Batman Arkham Origins - Xbox360, PS3, Wii U, PC
Battlefield 4 - Xbox One, PS4, Xbox360, PS3, PC
Call of Duty Ghosts - Xbox One, PS4, Wii U, Xbox360, PS3, PC
Dead Rising 3 - Xbox One
Destiny - Xbox360, PS3, Xbox One, PS4 (Possible PC later)
Diablo 3 - PS4, PS3, Xbox360
Drive Club - PS4
Final Fantasy XV - Xbox One, PS4
Forza Motorsport 5 - Xbox One
Grand Theft Auto V - Xbox360, PS3, (PC Maybe)
Halo (5?) - Xbox One
Halo: Spartan Assault - PC, Windows Phone 8
Infamous Second Son - PS4
Killzone Shadowfall - PS4
Killer Instinct (3?) - Xbox One
Kingdom Hearts 3 - Xbox One, PS4
Metal Gear Solid 5 - Xbox360, PS3, Xbox One, PS4
The Order: 1886 - PS4
Plants vs. Zombies Garden Warefare - 1st Xbox One, 2nd Xbox360
Project Spark - Xbox One, Windows 8 PCs
Quantum Break - Xbox One
Ryse Son of Rome - Xbox One
Splinter Cell Blacklist - Xbox360, PS3, Wii U, PC
Need for Speed Rivals - Xbox One, PS4, Xbox360, PS3, PC
Titanfall - Xbox One, PC
Watch Dogs - Xbox One, PS4, Wii U, Xbox360, PS3, PC
The Witcher 3: Wild Hunt - Xbox One, PS4, PC
World of Tanks - Xbox360 , PC
Below is a video I created which goes a little more in depth about each game going to what console.
*Sorry for the slight pounding sounds*