Meh, I felt that all three conferences were lacking this year. Microsoft definitely felt the weakest; few exclusives, lots of third parties and no non-western/Japanese support. Sony was stronger with the exclusives, third party and first. But they lacked Japanese coverage as almost everything was Western developed. Nintendo did phenomenal with their robot chicken spoof and overal presentation (they always do). Exclusives are still amazing, but really lacking third party and western support. Not to mention, a big lack of indie presentations unlike Sony and MS.
I feel that Sony is the overall winner,(I swear to god if I have to see another same run CoD presentation for a fifth year in row I'm automatically shutting off MS's stream) if only because they presented a better balanced line up. Sony pressers always run long and a tad boring sometimes, but they do eek out quality from time to time.
Edit: one special mention to Nintendo, I really like their treehouse coverage. Keep it up. Big points in my book.