Some hate AA, cause it saves from instant death; others hate shotguns, because they grind through AA like a knife through butter; some hate typhoon since it tears down people in seconds, even shotgunners. An so on, and on, and on.
The game has 8 modes, play them all, find the most fun for you. Some have completely different experience free from most nanosuit stuff. Special modifications are also present - I've seen a teammatch mod without nanosuits. If you hate AA, play this. It is quickly apparent, how fun it is to get back-OHK'ed every 5 seconds.
I've encountered servers that permit people only with low rank. Find them, play there, if you feel that you get devastated by just anyone.
If you are sure, that some builds are unbalanced - play them as well. See them from the inside.
I am for a change, perfectly fine with game balance. I don't care and don't judge anyone on account of what weapons\modules\strategies they use. I have perfect fun, while playing with the bow against really competitive high-rank players with all kinds of weapons. The nature of the game allows really interesting weapons and powers, each of which would break balance in ordinary shooters, but their cumulative presence IS balance. To every OP thing you can easily find counter-measure, they game allows you to switch in-match between different classes. You get back-raqed a lot? - install a proximity alarm. Get destroyed in 1vs1 gunfights? - look into rapid fire or improved aim. can't fight with quick shotgunner? - keep your distance, be wary of his whereabouts via radar or death tracking.
Yes, the game provides a giant gap between noobs and high-ranks. But you can start playing with hunter-mode, that allows decent xp gain. And decent builds do not require really high rank weapons or modules. I would say that you can start managing yourself pretty well at rank 15-18 based on your skills.
I enjoy every single match I play. Yes some people emerge that use tactics, that I would dim more or less dirty. But it is more rewarding to kill these people, then any other.