Honorable mention to Splatoon 2. It comes out in a month so I feel it would be silly to count it since it's so close. But it's definitely one of the games I'm the most excited for in general.
Fire Emblem Warriors Even if those games are not particularly amazing, Fire Emblem is one of my favorite series, and ever since Hyrule Warriors I wanted a Fire Emblem version. And we got it, so I'm super down to put in too much time into the game.
Mario + Rabbids I had a bit more faith in this game going into E3 because I could not imagine Nintendo letting someone make a poor quality game of Mario. Knowing it turned out to be very promising feels good.
God of War Not going to lie, last year I was worried about the combat of this game. The axe (forgive me Huber) looked very dull compared to the twin blades the series is known for. However, the combat flow looked much more exciting, and the story has me interested.
Metroid Samus Returns Big Metroid fan, seeing Metroid Prime 4 is a real thing, even without any info is totally fine with me. But since it's so far away, I need something new to tide me over. Here comes Samus Returns, which looks very solid, and it's a remake of a game I don't care too much for, which is really nice.
SUPER MARIO ODYSSEY!!!!!!!!!! I've seen enough people here explain why it belongs on my list. It's a game I am dying to jump (pun slightly intended) into asap. I felt the same about BotW from last year, and it's crazy Nintendo managed to get me like this two years in a row.
My list is super Nintendo centric, butthey are just killing it this year and it feels good to be excited for so many of their games.