Stat Points: Vitality or Energy?

I am building a PVP Sorc that will use the following gear or a little variation as experience dictates:

.08 Shako(BER?)
.08 Valor(BER?)/BER GA
396 Bugged STR Gloves
2 Constricting Rings/Occy Rings/PERF Ravens?
Cham Stormshield/Luna
Wraith Collar?
Imp Shanks?
OCC/WIZ
Gloom/String?

So far I am lvl 73 and have only put points into STR(15 for STR Gloves) and enough dex for 75% block.

This Sorc will be TS/ORB/??(fire) and I was wondering if it is better to put points into vitality, or to put points into energy and use Energy Shield. If the best would be VIT, then no other questions, but if ENE then how many points should I put into ES?

Any help would be appreciated, and if this sorc is just gonna get owned, then please let me know. Maybe my setup is all wrong.