WotLK moonkin form required? [pvp]

[LobsterLord]

im new on the server and rolled a balance druid, im wonder if moonkin form is worth it given the amount of armor pen players are running around with is there a pvp spec for bg/world pvp without moonkin form?

[Saewelo]

Besides armor you get 15% dmg reduction (while stunned), crit, and immunity to polymorph + easier to powershift out of snares etc.
Moonkin w/o moonkin form is not viable.

Le: you also need it in order to proc owlkin frenzy which is a great talent in PvP.