Alright, we've made a tier list, in typical fighting game fashion.
In a fighting game where you can't jump, the meta is defined by projectiles.
S tier:
CowBoy- He's got a gun and a boot. Beats all projectile spam.
A tier:
The Lady- She got a pretty fast projectile, can be overwhelming
Samurai- With the only anti projectile tool in the game, he's pretty solid if you have the reaction time. (Reacting to bullets is pretty hard though, so he's no higher on the list)
B tier:
Shoto- Walking forward behind 3 fireballs is pretty nutty, but the slow startup makes him lose the neutral spam often.