Maybe 3.0 wasnt balanced, but it was interesting for sure.

No one liked the revamp in 4.0 as far as i know, there was a major consesus that it killed pvp and it really did, since queue times were even higher than now.

But its all the past 5.0+ pvp is pretty neat speaking from perspective of someone who played in stormblood. It is way more balanced and damage centred than it used to, i remember a groups with 3-4 healers that were completely invincible, and bards and machinists killing everyone from range.
Current pvp is pretty good but it needs few more skills to be really good even better than WoW pvp.