zzbzq (and others) - The biggest issue with Feral Druid tanking is itimization. People joke about AQ being "filled with feral items" And it kinda is (6 items for bear, 7 for cat) but every other instance is really lacking aside from the 'accesories' (cloak, neck, ring, trinket) Especially the <20 man instances. Unless they're Rank 10 in PvP, non-raiding druids really can't get the gear to compete with the Dungeon 2 sets for Warriors/Rogues. Not counting accesories, the entirty of Naxx has 3 items for Feral (Ghoul Skin, Leggings of Apocalypse, End of Dreams) BWL has 3 (Malfurions, Taut Belt, Taut Shoulders, the latter 2 aren't better than PvP rewards), MC has 1? (ACLGs) and any druid that takes those over a rogue that needs them needs to be shot.

Tanking Wish List - I believe this to be the best Tanking gear in the game for druids, only arguable items would be Boots, Pants, or Weapon (BQW would dramatically increase DPS with a moderate drop in protection)
http://ctprofiles.net/2438606

Regular SoE, Battle Shout, MoTW, Giants bring the damage range up to 351-409 (2.5 speed, 380 average damage)
Regular GoA, MoTW, Mongoose brings the crit up to 32.9% Crit. And 26.19% Dodge.

Crits double damage, and thus double threat, and an additional 25 threat from power gain.

Autoattack: 380 average damage, 12.67 rage generated, 568 threat = 227.2 TPS
Swipe: 100 damage, 17 rage cost, 261 threat = 174 TPS, 15.35 TPR
Maul: 534 average damage, 7 rage cost, 1397 threat = 558.8 TPS, 199.57 TPR
Feral Faerie Fire: 161 threat, 6 second Cooldown = 26.8 TPS
Demo Roar: 10 rage cost, 63 threat = 42 TPS, 6.3 TPR

Given Unlimited Rage, Swipe is used every global coodlown, Maul is queued every attack like Heroic Strike, FFF is only used to keep it active. 732.8 TPS * 1.329% Crit + (25*.329/1.5) + (25*.329/2.5)= 982.66 TPS.

Obviously, not every fight gives you unlimited rage.

Rage Generation:
Auto-attack: (380/30*1.329) + (5*.329) = 18.479 per attack = 7.39 RPS
Special attacks: 5*.329 = 1.645 per attack giving Maul an 'actual' cost of 5.355 and swipe 15.355

Against a boss outputting 900 DPS on you (lets just say this is after avoidance, I don't feel like going into the math here): 10 RPS
This gives you more than enough rage to Maul every attack, so in a 1 minute timeframe:
you generate 60*10 rage = 600 Rage
using Maul every time costs: (60/2.5*5.355) = 128.52 Rage leaving 471.48 rage for swipe
471.48/15.355 = 30.7 (or 30) Swipes 30 * 1.5 = 45 seconds leaving 15 seconds for FFF, which gets you 10 of them

10 FFF = 1610 threat
24 Mauls = 44558.712 threat
30 swipes = 10406.07 threat
54 attacks = 444.15 threat from power gain
57018.932 threat/60 seconds = 950.315 TPS

That's just throwing out some easy numbers. Yes, I'm aware I should calculate chance to not crit instead of chance to crit for the +Power Gain, and Yes, I know I didn't include Miss chance.

Edit: forgot to add FFF in. I also left out Omen of Clarity, which is a 1 PPM, so the above scenario would likely see 2.25 procs, resulting in 2.25 more swipes and 2.25 fewer FFF

You forgot to use the savage fury and natural weapons talents, which neatly increase damage (and threat) by an additional 1.32 (1.1 * 1.2).
Should be 1254 TPS

Okay, thanks for the numbers.

A warr with this equip would do 1172 TPS unbuffed.

That spreadsheet is pretty impressive, but it assumes incoming rage > spending rage (I think?).

Warrior rage dumps are faster than most any mob can output damage up to at least Huhuran (I've not been further).

Yes, rage is by far the biggest issue with TPS.

One Six-Second Rotation is (12+12+5+20)/6 = 8.167 rage per sec.
Depending on your weapon, Heroic Strike costs another 8 (1.5sec) to 4.138 (2.9sec) rage per sec.

I'm using High Warlord's Cleaver so I need a total of 12.305 rage per second to max threat. To maintain this I need to have a steady income of 1107.45 DPS (including dodge/parry/miss, but excluding Unbridled Wrath, Shield Specialization or 5/8 Wrath set bonus)

Edit: Shield Block adds another 2 rage per second, which means the required incoming DPS to maintain max threat is 1287.5. If I was using a 1.5sec weapon that would be 1635 DPS.

No, I included them ... just only in the numbers on the character sheet. Included the 20% more damage to what Maul adds, and 10% more damage to your base hits, but forgot to add the 20% to your base hit when mauling, and 10% more damage to your mauls That's what I get for just looking at the sheet and not thinking, but 1254 is doubtful. That warrior page seems a big generous as well though.

The major advantage for druids comes from rage generation in a limited rage enviroment. The majority of fights, including patchwerk, don't allow for warriors to have unlimited rage, the number of fights where a Druid is limited on rage is significantly lower. Mostly due to the Savage Fury talent.

You haven't played with a good feral druid tank then.

I'm a warlock, I know ALL about how good any tank in an instance is holding aggro (UBRS is a 5-man for me, LBRS/Strat live are 3-mans).

I've seen a bad druid tank and know what you are talking about.... but a good one can hold aggro on many mobs extremely well, and on single targets I have a hard time pulling aggro off in a small group without salv available. Non-tank spec warriors who know HOW to tank are the next best... a full prot tank with good gear can't generate enough rage without taking damage in those little instances and especially has a hard time holdng aggro on multiple targets -- unless a thunderfury is in the equation of course...

Like all tanks, skill is very important. The class alone is much less important than skill. MUCH less important.

Devastate is a weapon damage skill, so perhaps not!