Twilight Sparkle:  
Twilight chooses the Gunner for because out of the Mii’s, it’s closest to use of Magic. The Side Special and Down Special are also a bit close to Magic because it’s like throwing a short fire blast, and the shield acts just like Ness’ down special as it absorbs energy projectiles and heals. The recovery was a bit harder to choose as neither fell very magic-esque. So she just went with the one with the rocket boost down and a big fist in the air. Her Mii has the Magic hat and the Mage clothes as an option further supporting why the Gunners work best for her.