Best healer for a 4x Warlock Comp?

[Purpleflavor]

So, I've narrowed my healers down to a Priest and a Pally.

Priests:
- Buff warlocks damage
- Stam buff
- Have dots themselves
- Offensive dispel

Paladins:
- Salvation makes it less likely to pull threat off VW's
- Wisdom on VW's mean they sustain a lot longer
- Do absolutely no damage, but generally more mana efficient than priests.

The main goal of this is to have 1 warlock to raid on while also being able to farm 60 dungeons. I want to avoid having to play multiple specs just to keep things simple and relaxing when farming at 60.

Please help me decide

Paladin has the best buffs with concentration aura , kings, wisdom, ect, and have thee best single target healing and the best mana sustain when geared up. Their weakness for multiboxing is aoe healing, which priest and shaman are both great at. Also consider Paladin buff timers are very short and can get extremely bothersome until greater blessings.

Voidwalkers are not viable tanks at 60. They tank fine, they just don't hold aggro. It was always a problem until they gave us the felguard and restructured the pets to better fit their roles, and why warlocks were never good at soloing dungeons like hunters could.