So far all the trailers I've seen are freaking awesome!
BF4, The Crew, Halo 5, Thief 4, Watch Dogs, MGS 5, Quantum Break, Tom Clancy's The Division.
Star Wars Battlefront, Mirrors Edge 2 (teasers but still good)
If you haven't watched them, I highly recommend all of the above.
Some were console exclusives (like The Division which blew my mind) but overall with the next gen consoles around the corner this year's E3 was pretty amazing.
Games like The Last of Us and The Division seriously makes me consider getting a console even though I don't play that many games any more.