Most:
Hyrule Warriors
Xenoblade Chronicles X
Bayonetta

Least: Kirby (though it looked fun)
Zelda U (I will like it when it is released, I just am not sold yet, I also hated the way link looked.)

Most: Splatoon, Captain Toad, Bayonetta

Cautiously Optimistic: Mario Maker, Xenoblade, Smash Bros

Neutral: Hyrule Warriors, Yoshi's Wooly World

Least: Pokeymons, Star Fox, Guess that Robot stuff doesn't count.

Good: Smash and yoshi.
Yoshi is awesome.

Bad: Kirby and captain Toad.
They will be alright but triple deluxe had little content so hope mistakes won't be repeated. Same goes for Toad I hope for Many levels for my buck.

I'm piggy backing this post. Although I'd like to to add more myself. 

Most: Pokemon Omega/Alpha and Yoshi's Wooly World

Least: Splatoon

Poor Pokémon, such little hype, yet so many sales.

Most: Pokémon Alpha Sapphire, Captain Toad: Treasure Tracker, Super Smash Bros. 4 3DS.
Neutral: The Legend of Zelda, Yoshi's Epic Yarn.
Least: Mario Maker, Star Fox, Splatoon.

Most excited:
Xenoblade Chronicles X
Bayonetta 2
Pokemon OR/AS
Smash Bros

Least excited:
Kirby and the Rainbow Curse
Splatoon

I'm pretty excited for Zelda U but I need more than that to get hyped.

I did but I included other games I was excited for and not so excited for. So thanks for the wrong assumption. The fact that they announced Layton vs Wright and Fantasy Life 5 seconds into the start of the Tree House event is what made me excited so I included it.

I'm gonna break all the rules and make a full list. I chose to include STEAM in my list because it's cool and was still a completely new E3 announcement. So from most excited to least excited here is my opinion:

Xenoblade Chronicles X
Zelda U
SSB4
Captain Toad: Treasure Tracker
Splatoon
Yoshi's Woolly World
S.T.E.A.M.
Pokemon OR/AS
Bayonetta 2
Mario Maker
Hyrule Warriors
Kirby and the Rainbow Curse
Star Fox

Most: Captain Toad, The Legend of Zelda

Least: Splatoon, Kirby 2D platformer, Yoshi 2D platformer

Most: Super Smash bros and Yoshi

Least: Mario Maker