With my warlocks, even at lvl 70, I just see warriors as walking heal pots.
Warlock lolcoil heals for alot and makes some decent damage. Problem is that it scales very good with spell power and at some point I started oneshoting people with lolcoils with one or two warlocks not getting the healing because their coils already hit a dead target.

Warriors, DK, bear druids and paladins seem to be the only ones that can take the 5 lolcoils and heal all my warlocks... so when I see a warrior approaching me, I just life tap, lolcoil x 5 and send the felguards to finish him. If he bladestorms he still dies, and I still end at full hp

Sincerely, bladestorm doesn't make that much damage if you are decently geared...

Now, when I have demon form and immolation aura up and see a warrior charge at me and die in a global, I just don't understand what is he thinking... "Omg, there are 5 warlocks with 5k/sec AoE damage. I will charge at them and then pack my bags for a corpse run"

With your palas you should be able to divine storm warriors to death. The good thing about bladestorm is that they cannot do other things nor can run away from you, so it's 6 sec you have to kill them while eating some aoe damage.