Parry is useless for druid tanks. It's debatable but I would say something like (from left to right)
Hit Rating (H cap) > Expertise Rating (S cap) > Stamina > Agility > Armor > Dodge > Crit > Attack Power > Haste
Stamina will give you 10HP per 1 Stamina. 1 Agility will give you 2 AP and 1% Crit per 324.85, 1% Dodge (prior to diminishing returns) per 243.58.
Rotation wise for AoE: Charge, Thrash + Maul, Swipe + Maul, Demo Roar. After that I just go with whatever is needed in the situ. Could be repeating that rotation or just a few swips and trashes with applying Lacerate to the main target. I would only use Maul when you have a full bar of rage in the pull. Otherwise drop it out. With a pull with next to no rage popping Challenging Roar is great too.
Single target I use something like this: Charge, Mangle + Maul, Faerie Fire Feral, Lacerate x2 + Mauls, Pulverize, Mangle + Maul, Lacerate x3 + Mauls. Then again just keep up Lacerate, Pulverize and Faerie Fire and go with what works well for you.
Hope this helps you get started :-)