No, that alone won't dictate the odds. Always it will come down to the individual prowess of the player as you've indicated. But the ratio can have an effect in the respect of Mario's existence in a higher spot. Having more representatives is always better and this is your guys' ambition, is it not? To grow the Mario scene in terms of its numbers? "finding Mario mains in general for Brawl" <---You want this, everyone wants this. If the quantity grows then that will introduce the increase for quality as well. There will be an increased flow of ideas and possibilities for the character. Its a team effort, as it should be with anything. Its not false that more Mario players will increase the odds, of course it can because percentages exist as they are. It alone just won't be the deciding factor but it can play its respective role.