You're missing one stat though: how many hunters/titans/warlock exist and have entered PvP and played enough? If there was an equivalent amount of players playing with the different subclasses (and playing ' enough' with them), then looking at the percentage as you do would make sense. But since it very likely isn't... I guess the best way to look at what you want would be: - somehow select all characters with more than 100 (arbitrary) PvP activity (you need a few games to get used to a new class before you reach your real level) - Look at the repartition of all those characters by classes - then take the top 100 and look if it's significantly different.