Nintendo. It had alot of games, all except for BotW2 set for this year with alot of gameplay, no CGI trailers that don't tell you anything about the game. Four games are from franchises that were dormant for quite some time, especially Advance Wars and Metroid.
Counting Cruis'n it's even five, since the last console Cruis'n game was on the Wii.
MHS2 got it's imo best trailer yet because it had alot of gameplay and SMTV also got alot of gameplay. On top of that there were alot of third party games, all coming this year.
The only other good showcase was from Microsoft, which did have the faults of having to many CGI trailers with zero info on the games, most of which are either releasing next year or didn't even get a release window. Obsidians comical trailers were obviously a plus though. Also the show had great pacing and the huge number of announcements alone made it a worthwhile show, it also had a decent genre variety even though there still were to many shooters.
So I think Nintendo wins and Microsoft is a close second. Ubisoft had Mario + Rabbids, which I'm hyped for and Avatar lookes promising, so Ubisoft's show wasn't bad.
Square, Capcom, Gearbox and Take-Two's shows were either terrible or an outright dissgrace to what E3 should be. Didn't watch Bandai's show.
