Off-topic, but besides Metroid Prime 4, I really wish more shooters would make the game around the concept of motion controls.

RE4 Wii was awesome! The ability to aim using the pointer was great!

https://www.youtube.com/watch?v=gwui874YUik

Another early EA effort that was really impressive was Medal of Honor Heroes 2.

Besides having smooth and highly customizable pointer controls years before The Conduit, it used a ton of really cool motion controls like pumping the nunchuk to pump a shotgun, dialing a sniper scope in and out by rotating the Wiimote, and lifting the Wiimote to your shoulder to mimic a bazooka, so that the speaker goes off with a launching sound next to your ear. Super awesome stuff.

anything with the IR pointer was great. I really hated the switch from IR to motion plus in skyward sword.

I like the racing games. Mario Kart, Excitetruck and Excitebots.

I've never played those two games, but it's funnily enough one of the games I hope for the most on Switch   

The games just look so fun! 

I have really enjoyed my time with Skyward Sword, but while the swordplay is cool, the motion controls of Metroid Prime 3 and Trilogy weren't just cool, they were exceedingly practical. I think that Metroid Prime 3 remains the best example of motion controls integrated perfectly into a game.

Pikmin/Pikmin 2 by far. The added pointer controls in the Wii releases were incredibly precise and made the game much easier and more fun to play. Going back to sticks afterwards feels really counter-intuitive to me.

Zelda Skyward Sword

Red Steel 2 and Skyward Swords played incredibly well considering they were heavily reliant on motion controls.