It is all about the ay you like to fight. If you really want to blow things up and own in pvp make a frost mage. remember locks are just like hunters we are only as good as our pets. as a 70 lock I can tank most elite mobs except bosses with my felguard. As an orc lock I have blood lust that increases dam, amp COA, Corr, immolate, Incinerate, life tap then drain like or I just shoot with wand. I hardly ever use shadow bolt  and most certainly never use suc. I can use FG to off tank and CC just fine. and besides he does over 200 dam a sec with his cleave . also with varous trinkets I do 6k dam/24 secs and 4.5k dam/24 secs w/o. So i love demon/aff spent 50+ deom and 17Aff only prob is needed 2 more TP to really kick ass.

And you know ppl are scared of us locks cuz we are the first one targeted in most pvp situatiions especially arenas