Sony? DS?
Clearly you putting those two words in the same sentense was a mistake.....
Since Sony dominates the market, I didn't see how showing that they did AGAIN was going to impress anybody. Investors, maybe, but for gamers, all we needed to know was that Sony dominated again. Thats it.
All that market share and financial stuff really isn't too interesting.
I think Nintendo just came out on top due to sheer content and pant-filling factor.
Who would have thought that MS wasn't going to show Halo 2? The thing is, there really isn't too much to show anyway, since Bungie brings out a weekly/fornightly/monthly/whatever online report about the progress of the game.
And yay, ANOTHER Grand Theft Auto and Gran Turismo game? Considering that the only thing you can really add to those games is more violence and newer car models respectively, there really isn't much difference. And while MGS3 sounds really cool, I think the games are dragging on (if you don't know, yes, they are continous, so you have to have played MGS1 and MGS2 to get whats going on in MGS3 - there's a question before you begin MGS2 asking if you've played MGS1. If no, then the game changes bits around so nothing gets spoiled. So imagine what they'd have to cut out and change in MGS3 if someone hasn't played 1 and 2).
So Nintendo wins.