Armor Vs. Stam on Pet?Follow

Pets don't really off-tank in dungeons, they have insufficient avoidance and mitigation. The damage they tend to take as aoe magic damage, so Stamina is my vote for a pve pet.
For pvp armour would help.

You should be using stamina for your pet. This is mostly because armor does nothing against magic effects and because your pet should never be taking direct hits in PvE.

Avoidance, Cobra Reflexes, Stam, Speed increasing moves, dps moves, and then 1 resistance (most likely thing you're going to come up against)

Yes. the one pet im grooming for (non-PvP) is for raids dungeons. So as mentioned above should not be the main tank but.... I want him to at least take a couple of "whacks" from the big guys in case tank loses aggro. That's where my dilemma is. Will more armor hold better than higher stamina?
And pardon my ignorance but, Am I to understand that armor does not protect you against anything other than melee DMG?

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In an instance your pet will never be able to "tank" anything for long (unless you are over powered in some way) The tank will only lose threat for a reason (reason might be he sucks) usually over eager DPS pulls it. In that case feign, iceblock, die...many outcomes for this scenario that are all appropriate. The one time I try to use kitty is when someone is whacking on the healer. Send the pet, manually activate growl, pop intimidate, bang away at the mob til I have aggro and kite. Better you die than the healer BTW.

OK if you have a healer dedicated to you and pet you can off tank. In a 5 man and most raids this will not be the case. In rare scenarios where this is called for you will not need to ask here how to do it, you or one of the 25 people in your raid will already know.

I usually tank that bad boy to but my pet doesn't do jack except dps. I have growl off since I am BM and don't really want to risk losing him early on in the fight and have to raise his ***, to much mana to waste and with polymorph I might not get off the much needed mend pet if my healer is a bit off that night. Do you double tank him with another ranged?

For high king treat your pet as a melee class. I have (I'm our raid leader) our melee go Priest > Warlock > HKM. Our ranged goes Priest > Shaman > Mage > HKM. Send your pet on the priest while you dps tank the Shaman. Once the priest is dead, send him on the warlock while your raid finishes off the target. Now I'm survival so after my tanking target is dead I switch to HKM to benefit the melee while our casters dps the mage (that and I have a notorious habit of accidentally arcane shotting the shield, so I don't dps that mob anymore).