I have to go with smash bros (melee in particular) not because of anything other than the extremely vast amount of character styles. What it means is more people can find the character that suites them and thus the best rise to the top.
for example: aniki and chudat. they took two mid tiers link (link is mid tier due to aniki btw) and ice climbers and became top players. their skill is what got them their, not their character. they happened to be able to find characters that suited their style and could utilize their skill the best.
and if anyone ever tried a wave shine to shine spike they would know the insane amount of possible skill that can be used.