I voted Infinium, because even though I didn't see anything about it, or hear anything about it, I still have this feeling that it OWNED HOUSE BIZATCH.
If I said yes, would I unknowingly be dissing the company to which I claim to loyalty to?
If you say yes, you're saying that you liked Nintendo's showing best because they had the same thing they always do. Whether that's good or bad can be left to opinion.
Honestly, anyone who thought "I'm here for kicking ass and taking names" was funny is the same kind of person who thought "anti-son-of-a-bitch stick" was funny in the Halo 2 preview. Oh, yes... that's assuming there is no bias involved.
Yes, I thought the PSP was an excellent show. I think Nintendo went back to the drawing board for the damage control.
As for games themselves... I feel each system had about an equal number of excellent games (each of which can only be truly amazing to those who actually own the consoles). So it was really up to how well the company could shift the gaming industry. Infinium didn't pull it off, but PSP did. There's finally competition in the handheld.