games are cool I guess
Well, I really don't want to go too off-topic on our opinions of perfect balance. You could always make a new thread if you want to continue this conversation. But as a note I wouldn't say that rock-paper-scissors is perfect balance, although it is more fun that the system we have now.
Yes, there are builds that are better, but that slightly better advantage granted by an unavoidable rock-paper-scissors environment should be so slight that if someone actually has more skill they would have a much increased win percentage that overrides the advantage given by the rock-paper-scissors engagement.
And to add another point to what I think a perfect ED would be, I would like to say that a perfect ED would have infinite different builds that were on par with each other, that are all equal and viable in general random PvP. That's probably impossible though, but one can always wish.