My biggest issue with classes is the smuggler class with the cc's they have. I have no problem taking on one smuggler, but when you come across a team with 4 or more of them, and they run together, you will be cc locked your entire life if they catch you.
I'm sure on the Republic side, they get tired of Operatives and there capabilities. But as a Empire player, I don't come across them often
PvP is getting over run with people going after the best "new pvp" class, and think they are better than you because they play these classes and kill you quickly because of cc locks, plus other attacks.
I hope to see more heal spec'd healers one day, they are a great asset to a team. And people really don't like to kill them either, I love watching my team, or the enemy just run past healers to attack dps classes, or tanks, because you think you will kill them while the healer heals them. Kill the healer, and the others will fall