Toadette of course , but with the Music Room stage and Toad playable, that was pretty ok. I would have loved to see a Toadette stage and dette herself playable, but the roster is fine with me.
I wanted to see Boo and Diddy Kong playable, but Diddy Kong was a story character and Boo was dropped for mini-games. All I have as favorites was Yoshi.
I was fine with the roster as all of the characters dropped were featured in the game (Expect for Birdo and Blooper). I would of liked Toadette and Boo to be playable though.
With Yoshi and Princess Daisy, I am perfectly content with the roster. But I would of loved to see Toadette, Koopa Kid, and Boo since I play as them sometimes in Mario Party 6.
I just hated the fact they had few characters playable.
That's probably why Mario Party 9 didn't have Toadette or Boo or Dry Bones weren't playable.
I think they definitely needed more characters.
I'm kinda happy DK was not playable because I don't have a 3DS and I don't have plans on getting one so I okay with the roster (could of have more characters tho).
The playable characters are pointless (except Toad), but it's all because of Bowser's Shrink Ray. I think at least 10 of Mario and Co. should be: I'll add Birdo and Toadette.