Sony won the show again, maybe you guys were watching some other show. Sony had the best games, Sony had the most games and Sony had the best press at the show. I found a list of games, that were playable or had videos at the show. These are just from one source, there are more if you search the net.
PS3
MGS4: Guns of the Patriots
Echochrome
Winning Eleven: PES 2008
White Knight Story
Metal Gear Online
Project Origin
Devil May Cry 4
Imabikisou
Dark Sector
Ratatouille
Dynasty Warriors 6
Beautiful Katamari
Folklore
Ratchet & Clank
Rainy Woods
Valkyrie Of The Battlefield
FIFA Soccer 08
Mainichi Issyo
Bladestorm
SEGA Rally Revo
Yakuza 3
Record of Agarest War
fl0wer
Heavenly Sword
Time Crisis 4
LittleBigPlanet
BlackSite: Area 51
The Last Remnant
Soul Calibur IV
Eye of Judgment
Go! Sports Ski
Aqua
LocoRoco Cocoreccho!
Afrika
Gran Turismo 5 Prologue
Army of Two