I have tested thise two classes in ptr, while retri seems to have 70k+ stable/cd dps cant remember which, demonology warlock seems to be able to deal only 50k dps during burst in meta, against target dummy atleast. Warlock has better survivability but outside of cooldowns it does not do much damage and dies easily.
Which should I begin to play in pvp next season? If there are better casters than warlock, give advice.
Also, should i take death knight instead of retri paladin