1) NEVER go toe to toe. DoT, DoT, run!
2) DoT multiple targets
3) DoT, DoT, LoS
4) . The idea is be mobile and only using Telekinetic Throw when you have a chance to cast
5) Combine abilities that compliment each other. Example: use Force Wave, walk backwards while waiting on global cool down and follow up with Telekinetic Throw, then run. Don't forget to keep DoTs up. Run before they get within melee range though. Even if you must end Telekinetic Throw early
Use all defensive abilities at your disposal, blah blah blah. Of course there's always stuff like key binding, which will improve game play with any class. Especially Sage. You need to think quickly, thus get your abilities off quickly. I wouldn't think of playing this class without key binding.
Fact is this class is far from broken. It dominates! Master it and you will be a PvP God.
Hope this helps someone! =)
Bring on the trolls and haters =P