Shall a PVP Priest go Shadow or Discinpline?

Darule

I don't know if you agree with me, but since release of Buring Crusade, Shadow priest don't melt face anymore. Fear seem to break a lot easier, and Melee classes seem to be able to "glue" to Priest easier. I'm thinking about changing my spec to Disinpline. any suggestions>?

Antipathy

You will see a large drop in your dps. And whilst your healing will be better, it still won't be great.

Personally I believe discipline is only a decent pvp spec before level 40 - a skilled discipline priest with good gear at that level can have huge survivability.