Comparison of squads for 5 man dungeons

[Nessimon]

I am having a really hard time deciding on the 5th member of my dungeon group. It's a horde melee cleave, so 3 warriors + shaman is a given, but the last spot is giving me trouble.

Considering 4th Warrior, but worried if the shammy will be enough as a solo healer.
The Bad: Shammy has no backup rezz except for ankh, no spirit regen in combat. One more warrior to get the same gear as the other 3.
The Good: Chain heal is great. Significant increase in cleave damage and simple to control thanks to 4+1 setup.

Priest. Not very impressed with adding a priest atm.
The Good: Great healer. Dispell magic, Fade. Possibly Spirit Tap, but imo that's overrated.
The Bad: Doesn't bring much except the healing.

Druid. Feels like a versatile choice.
The Bad: Not the most efficient healer. Only AoE heal on a long CD. No regular rezz.
The Good: Brings Mark, Thorns, Innervate, Faerie fire, Decurse, Combat rezz. Can switch to tank at 60 for +3% crit aura, or anytime the healing from a shammy shows to be enough.

2nd Shaman.
The Good: Can supply more totems (most likely not useful anywhere but bosses or some big areas), easier to control thanks to 3+2. Having two alternating healing allows one of them to regen (and mana spring and tide become viable).
The Bad: Similar drawbacks as the 4th Warrior, but having two lessens some of the issues.


Atm I am leaning towards druid, mainly because of all the various stuff he brings. With the shaman throwing a chain heal here or there, healing shouldn't be an issue. Ability to switch to bear and start swiping seems to be handy pre-36 and at 60 especially. Second choice are the two shammies, mainly because of the simpler piloting and so I can balance their specs/gear depending on how much I need healing.

Am I missing some important Pros or Cons of any of these variations? Any input appreciated