This is my experiance with lvl 50 PVP PUG matches, Harbringer server. (NOT RANKED)
The 1.4 patch has greatly benefited Imps over Reps.
Before 1.4 you would have win streaks, losing streaks, and a mix. Now the Imps dominate 90% of the time. It does not seem balanced at all. The fun is being sucked out of it.
Part of the reason why:
Imps run a lot more healers then Reps on Harbringer server. Therefore, the 1.4 healer buffs snowball into a huge advantage to the Imps. They have always had a edge anyway and end up gearing faster. This causes new lvl 50 PVP players to get discouraged and givie up and so Imps end up with better geared, more experienced players.
Ofcourse things may be different depending on what server your on and what days and times you play.
P.S. new glitches and bugs too.
Switch to Red Eclipse, we have the exact oposit situation. Rep win over 80% of the matches, with Imp desperately trying to get comms to get better gear.
There are so many other things they could do to fix the game. Somehow make ranked warzones more attractive for teams would remove the coordinated teams that make PUG PvP impossible as Imp on my server.
Or maybee try to use some sort of matchmaking system for the PvP queues. At least on my server, the queue times are really low nowadays, i wouldn't mind some more queuetime to get more evenly matched teams. About one game out of four is not decided from the lineups. The rest of the games normally ends up with hutball victories in about 5 minutes, void star defeats in minutes, alderan defenses with Reps holding all three defence points for a couple of minutes all games.
Thats the reason for people quiting the matches, they want an even game, not just losing big without even getting one control point.