I've played tons of games where the outcome was decided by one cooldown. Breaking a cc that would get your teammate killed and then going on to win the game means that cooldown won you the game. Just because 2v2 is a clusterfuck of imbalance doesn't mean obvious imbalances can't be fixed. One race has something another doesn't - there really isn't a question of whether or not some races are inferior.

Its easy enough if you just use a little imagination:

Priests/Paladins: Different divine sources

Warlocks: Different infernal sources. Swear allegiance to Archimonde, Kil'jaeden, or Sargeras specifically and get a special curse! (Not that this prevents you from hurting them and their agents once you have, if you can keep your new powers and eliminate them so you can keep your soul, great!)

Rogues: Different horticulture, I like that idea. Obviously undead are less troubled about using horrible biological agents, being dead and all (see Devouring Plague)

Hunters: A noble Indian living off the land (Tauren) is different from a drunk gun nut trophy hunter (Dwarf) is different from an ancient pseudo-military order like the Templar (Farstriders) is different from a park ranger interested in preserving the balance of diseased/overpopulated species (Night Elves) and so on.

Shaman: Four shaman races, four elements to be closely attuned to, this one is easy

Warriors: Different martial arts/heraldic rules. Real humans came up with bushido, the code of chivalry, the warrior caste of Sparta, its easy to think very different fantasy races would too.

Druids: This is kinda tough, as both worship probably the same god and swear allegiance to a united order over their political faction. I guess you could make Night Elf animals more graceful/agile and Tauren animals more smashy/strengthy to represent their true forms.

Mages: This is the only one I have trouble with as I can't come up with any solution that puts the ancient and powerful magisters (blood elves) on a balanced level with their trainees (humans/gnomes/undead (latter day humans)) or a primitive voodoo culture (trolls.)

OK, but roughly, most races are on the same plane, with a couple horrible ones and maybe undead a bit too strong. (Not to question their frustration but I notice a lot of people calling for elimination/damping are from the worse-off races here.) I see bringing the worse off up a little to the plane most are on to be a much more fun/interesting solution than bringing everyone else down to baseline.

Even the original poll question of damping abilities/buffet/removal vs. total status quo shows a kind of black-and-white bias where things should go to one extreme or the other (total equality either in choice of powers or total lack of them vs. complacency with the unfairness that exists,) when I think a fine tuning of what already works for most is a much more reasonable solution in the grey area being looked over, even though it means perpetuating some degree of fundamental difference.

This is pretty much an awful thread, please take it to the suggestions/pvp sections on the blizzard forums, it will feel more at home there.