Just use the new heroic badge cloak, that has everything you want, including bonus armour.

Also, [e] the problem with tier chests is that they are both on bosses that guilds seem to stop running fairly soon. We don't run Mag really any more, certainly not as a scheduled event, & I can't imagine us clearing Kael for many more weeks. Fingers crossed though.

Are you doing this mainly for PvP or PvE? For PvE saving for the S3 helm/chest is probably the biggest upgrades you'll find if you're not at top end raiding. For PvP, its probably better to save up and buy the resto S3 pieces. At the moment Resto is EXTREMELY good in the arena. If you want the shoulders/weapon eventually you're best bet is to go resto for arena and get your rating up that way. While high ranked feral is doable, its far more difficult and really you'll probably be healing an aweful lot anyways.

I very well might but still my point is valid as, things like [Band of the Abyssal Lord] are also nice but without the armor can be a problem, especially if endgame I want to use [Shadowmoon Insignia] and [Moroes' Lucky Pocket Watch] for my trinkets.

I was actually wondering about this myself. I'm at a comfortable 35k armour unbuffed now with Badge of Tenacity, but that Shadowmoon Insignia does look very nice. Same goes for other items such as Rings that are pretty nice tanking items, but simply lack the armour. How high should we value the stat anyway?

I've always found this a bit of a pickle, and thusfar I have reasoned that armour is a stat that directly reduces the damage you take on every single physical attack, and thus it's a very important stat - too important to ditch it for some more Sta or Avoidance.

However I also know druids that think differently and swap [Gilded Thorium Cloak] for [Pepe's Shroud of Pacification] without a second thought..

Hm. I'm getting the feeling I'm seriously overdoing my defensive stats. I guess I'm mainly an offtank, though I do MT bosses now and then. I have to admit it's more exception than rule.

My armory is clickable to the left, if you can be bothered, but basically I'm gemming Stamina pretty heavily (I'm at 16.7k selfbuffed) as I feel it's the most important tank stat.
I have a thing for socket bonuses though, so I use Sta/Agi in red sockets, pure Sta in blue, and Agi/Hit in yellow. (If it's an item I only use for DPS I gem Agi of course).

As you scale Tiers of gear, it becomes easier to take non armored pieces of gear and stay at the level of armor that you want. There was also a rumor about armor kits/enchants being added into the dire bear armor multiplier.

Armor by set:
T4 - 2674
T5 - 2977 (+303 from T4)
T6 - 3152 (+175 from T5)

Also with the addition of hit rating affecting taunt, hit has become slightly more important for raiding as a resisted taunt can wipe the raid on certain fights.

Adding to what dukes said, higher armor means less rage generated. So if you are finding yourself rage starved, for whatever reason, you may want to reevaluate your stat priority towards more agility.

I try to only get to the 75% cap. Anymore is wasted, so i only ever try to sit right at it. Then try to max then stam, agi/dodge then ap/str and hit.

A few months ago I found a really great thread that compared defense to resilience for feral druids and warriors. It had a lot of math in it to prove it's point. I've been searching these forums for that thread for half an hour now and can't find it. Anyone have a link to it?

It's perfectly reasonable basis for analysis. Every miss is about 400 damage lost, give or take a few dozen points depending on gear and a lot more if it's a rip. Alternatively, your miss rate directly affects the effective cost of your specials. This is in addition to non-tangible benefits, like smoother cycles and less irritation. It's not 'just 8 energy lost'.

Remember that in any particular set of gear, some factors are linear scalars and some are % scalars. AP is linear. Crit is a % scalar. Agi is a mixed scalar. In general, as your overall dps rises and your get improves, % scalars tend to dominate over linear ones.

Expertise is great because it introduces a new % scalar that actually works for ferals, unlike haste and armor pen. Even better, it works exactly like an existing one: Hit. Hit is already very good for BT ferals. Expertise will be just as good.

As for resilience, the short version is resilience + agi > defense. So the pvp gear is pretty good, because you are replacing defense gear with items that tend to feature resilience and agi. Socketing or trinketing for resilience is not, as the total effect of defense, point for point, is greater than resilience.

There were some posts in the Bear tanking thread awhile back discussing the merits of armor vs agility for high-end tanking. Conclusions seemed to be that agility is superior in terms of actual mitigation once you reach a certain amount of dodge/AC, due to the fact that dodge gives increasing returns whereas AC diminishes slightly. Sadly I can't find the exact posts now but they're in that thread somewhere.

It really comes down to personal preference though and for me (and my healers) absorption > avoidance. I actively dislike having too much dodge because, despite the fact I'll take less damage overall, each extra dodge % seems to increase my chances of dying exponentially - healers focus their attention elsewhere after a lucky string of dodges and aren't prepared for the three 8k crushings that come afterwards. Also, in a rage limited situation I'm not convinced that agility is a better choice for threat generation than raw AP.

Personally, I'd just say "don't keep the pants" since you're competing against rogues on everything outside of 3 tanking items at the T6 level. I'm lucky that the [Cursed Vision of Sargeras] goes to me first, other druids likely won't be as lucky.

e: About Tanking, Armor is very important, but so is Sta. In BT you're already going to have a Prot warrior as required MT for several fights, so it's well worth your time (and sanity) to just go for being a great OT, where your primary concerns are being able to stay 2nd on aggro and not suck at DPS when you go catform. This means instead of "Max Armor, and as much HP as possible" you should just be looking for "How much DPS Gear can I get away with?" I push this as much as possible, and you'll often see me drinking [Item not found!] just to avoid wearing additional tanking gear.

I will concede that Gruul/Mag/SSC favors ferals in high sta/armor gear over my current crit heavy build.