Doesn't matter. We would be trying to match a Raider's voices to a character's body, action, whatever.
Coryn is not on atm, so I'll pick on him. Let's say we try to find a character that would fit Coryn's voice. When we are ready with our choices and ready to compare, we tell each other what we have picked and discuss about out choice for a little bit.
For example, let's say I'd picked Kisuke Urahara, Manimal picked Edward Elric, and you picked Kirito. We would then talk about why we pick these character, like if he could pull it off, a comical comparison, etc..