Time for fanboy wars! I think we've covered the differences between the 2 systems in their respective threads, with really no difference between the two in terms of hardware or platform after MS changed their stance on game sharing. With the launch only a few months away, the launch titles list has now been published.
PS4 Launch Titles
Assassin's Creed IV: Black Flag (Ubisoft, Ubisoft)
Battlefield 4 (EA DICE, EA)
Call of Duty: Ghosts (Infinity Ward, Activision)
Driveclub (Evolution Studios, Sony)
FIFA 14 (EA Canada, EA)
Just Dance 2014 (Ubisoft, Ubisoft)
Killzone: Shadown Fall (Guerilla Games, Sony)
Knack (SCE Japan, Sony)
LEGO Marvel Super Heroes (TT Games, Warner Bros. Interactive)
Madden 25 (EA Tiburon, EA)
NBA 2K14 (Visual Concepts, 2K Sports)
NBA Live 14 (EA Tiburon, EA)
Need for Speed: Rivals (Ghost Games/Criterion Games, EA)
Skylanders Swap Force (Vicarious Visions, Activision)
Watch Dogs (Ubisoft, Ubisoft)
Xbox One Launch Titles
Assassin's Creed 4: Black Flag (Ubisoft Montreal, Ubisoft)
Battlefield 4 (EA DICE, Electronic Arts)
Call of Duty: Ghosts (Infinity Ward, Activision)
Crimson Dragon (Grounding/Land Ho!, Microsoft Studios)
Dead Rising 3 (Capcom Vancouver, Microsoft Studios)
FIFA 14 (EA Sports, Electronic Arts)
Fighter Within (AMA Ltd., Ubisoft)
Forza Motorsport 5 (Turn 10 Studios, Microsoft Studios)
Just Dance 2014 (Ubisoft Paris, Ubisoft)
Killer Instinct (Double Helix, Microsoft Studios)
Lego Marvel Super Heroes (TT Games, Warner Bros. Interactive)
Lococycle (Twisted Pixel, Microsoft Studios)
Madden NFL 25 (EA Sports, Electronic Arts)
NBA 2K14 (Visual Concepts, 2K Sports)
NBA Live 14 (EA Sports, Electronic Arts)
Need for Speed Rivals (Ghost Games, Electronic Arts)
Peggle 2 (PopCap Games, Electronic Arts)
Powerstar Golf (Zoe Mode, Microsoft Studios)
Ryse: Son of Rome (Crytek, Microsoft Studios)
Skylanders: Swap Force (Vicarious Visions, Activision)
Watch Dogs (Ubisoft Montreal, Ubisoft)
Zoo Tycoon (Frontier Developments, Microsoft Studios)
Zumba Fitness: World Party (Zoë Mode, Majesco)
Comparing the lists, we have 15 games for PS4 and 23 games for Xbox One, winner goes to Xbox One. Filtering out all the dual platform games, here's what it looks like for exclusives at launch:
PS4 Launch Exclusives
Driveclub (Evolution Studios, Sony)
Killzone: Shadown Fall (Guerilla Games, Sony)
Knack (SCE Japan, Sony)
Xbox One Launch Exclusives
Crimson Dragon (Grounding/Land Ho!, Microsoft Studios)
Dead Rising 3 (Capcom Vancouver, Microsoft Studios)
Fighter Within (AMA Ltd., Ubisoft)
Forza Motorsport 5 (Turn 10 Studios, Microsoft Studios)
Killer Instinct (Double Helix, Microsoft Studios)
Lococycle (Twisted Pixel, Microsoft Studios)
Peggle 2 (PopCap Games, Electronic Arts)
Powerstar Golf (Zoe Mode, Microsoft Studios)
Ryse: Son of Rome (Crytek, Microsoft Studios)
Zoo Tycoon (Frontier Developments, Microsoft Studios)
Zumba Fitness: World Party (Zoë Mode, Majesco)
Comparing the exclusives, we have PS4 with 3 games, and Xbox One with 11. It would be too easy to call Xbox One the winner here, but it really depends on what games you like. PS4 has released a list of indie/PSN only games. Xbox One hasn't done that yet so PS4 wins by default.
PS4 PSN Launch Titles
Basement Crawl
Blacklight
Contrast
Counterspy
DC Universe
Doki-Doki Universe
Flower
Hohokum
Minecraft
N++
Pinball Arcade
Planetside 2
Pool Nation Extreme
ResoGun
Super Motherload
Tiny Brains
War Thunder
Warframe