I think there were some great announcements in every conference, but they were all paced so poorly (except Nintendo) that it felt like a huge slog most of the way through.
For Microsoft, I liked the Cyberpunk and the Keanu Reeves bit, Forza Lego expansion, and the Halo trailer.
Watchdogs 3 and the BOTW lookalike interested me from Ubisoft.
I also think Bethesda had some great sections, especially Ghostwire, Wolfenstein and DOOM eternal.
But the conferences were just a huge slog to get through.
I have seen the presses referring to the Gods and Monsters game to be the BotW lookalike.