I like Larry or Lemmy. I forget who, but in NSMBW there was a boss fight with one and he flew around shooting canons at you. But I cant remember who. I also like the one who balances on the ball, his fights are neat. But within Mario Kart, I find myself using Larry or Wendy a lot. They are the most annoying out of them, and that's what I go for when choosing my characters. But it is kinda dumb how they put all the Koopalings but didn't include Bowser Jr.