stam stam, stamity stam stam stam.
No, no viable PvP gear, maybe a shield if you can't find a better one, they have a lot of stam and armor on them, otherwise no, not really, at least not what's preferred over normal PvE gear. The PvP enchant is preferred though.
Order would probably go Stam -> Armor -> Agi -> Dodge -> Expertise -> Parry -> Block. Expertise is flexible depending on how much you have, basically you want to make sure you have defense and expertise minimums (26 for pallies, although iirc there is a glyph that gives 10) and 540 defense (536 if you use the PvP enchant, hint: you should). More is okay and still has value from behind the minimums, but isn't as important as the minimums themselves. Although I will also say that expertise isn't as important for pallies as it is for warriors since some of their abilities count as spells and therefore cannot be dodged or parried. Someone correct me if I'm wrong on that but I'm pretty sure I'm right.
Pallies get a lot of bang for their buck from stam, due to better coefficients and ardent defender.