So I have been pvping for a while, BGs, Arenas, etc. I have noticed that I have an extremely hard time when dealing with healers. I have the common 17/0/54 unholy spec with mostly wrathful gear, but it just seems that I cannot kill healers that actually pay attention, in similarly geared pvp gear. I don't know what to do, and if I am doing something wrong. Even using strangulate, ghoul stun, and mind freeze I find myself often times unable to push most healers to death.
Paladins just stand there and flash of light themselves, nearly endlessly.
Priests bubble, and penance/renew. Even if I counter their greater heals, this is the only class that I even have a chance against.
Resto druids, drop a slew of hots on themselves, and if they ever get in danger they barkskin, and/or Nature's swiftness.
Resto shamans, endlessly drop stoneclaw, earthbind totems while riptiding themselves with earthshield.
I can fight these classes and sometimes win, but battles against them usually take me running them out of mana, (literally taking 10-15+ minutes) or overpowering them with 2-3 players.
Is this just the weakness of death knights? Even if I try and burst I seem to have a hard time, or fail miserably in arenas. If I focus on DPS first, they get healed even more then if I was just attacking the healer. Not a QQ, just trying to figure out if I am doing something wrong, or if I have to wait for necrotic strike to even have a chance.