I am going to change my professions on my Elemental Shaman soon to something that is better for PVP. I have saved up a bunch of gold and feel like I don't need two gathering professions anymore. I do both arena and bgs a lot.
I have heard mixed feelings from guidlies about whether Engineering is good or not. I have also heard people recommend Jewelcrafting, enchanting, and inscription at various times.
Which profession do you think is the most useful for PVP (ignoring pve completely)?