if you want equal gear and perfect balance in a pvp environment, i suggest playing a game designed around this concept. any number of pvp based fps games come to mind.
wow has always been about gear progression, just about every mmo is. you EARN gear by PLAYING the game. not by crying about it. your 15 bucks per month gives you the ability to log into the servers and play, it doesnt give everyone the right to every reward available in the game. it gives you the chance to earn those rewards. i have never had much of a problem getting enough pvp gear to feel like i was able to compete. it just takes a little time. it is remarkably easy to earn pvp gear from battlegrounds, and you dont even have to try to get conquest points anymore.
if someone has maxed out pvp gear from being on a successful arena team, and they stomp you in a bg.. do you really think the gear is what caused the stomping to take place? id say in very, very, very rare cases perhaps but most often, they would have stomped you in greens.
im the first guy to admit it sucks to get the snot kicked out of you in a pvp setting, but you know what? both sides cant win. both sides dont always have the most fun. there is always a winner and a loser. learn to lose, learn to win, learn to have fun.