I'd say Sony had the best conference, even though it wasn't spectacular as well. Uncharted 4 did save it, because most of the rest was boring with failed attempts at humor and a nice bucket of tech problems, but supposedly Uncharted was real footage and not just pre-rendered. Coming from Naughty Dog, I believe that, which means the game looks out of this world and is finally a game that looks like a real jump over last-gen.
Nintendo however did (or still does) great with their extras; the 'treehouse' with all the info and the Smash tournament that just ended. I think especially the latter created massive hype and put the spotlight back on Nintendo. Overall I'd say they (will) win E3 because of those things. In their conference, they showed too little, rushed through it and for some weird reason didn't show half the games they have.







