hey im new to the druid world but not wow, but i have been hearing that druids are actually quite strong for pvp. i have heard mix reviews and cont to look for strong builds.  i have heard go feral trree and yet some say balance all advice is welcome thank you

this here was my build before i respecced for a endgame instances resto build:
http://www.wowhead.com/talent/?zZVgMscbdLExb0co
that one worked well for me so you could always try that one. it is really god for overall gameplay. good PVP and PVE applications for that build. is also a common one is called the HotW/NS build. we use it for feral damage with an instant heal and switch back to damage. works like this
dealing damage- pounce/bash (depends on feral form you are in at the time) shift to caster, cas natures swiftness then immediately cast healing touch on yourself to heal then top off with rejuv then shift back to feral form. if you are quick enough you can do it all before he comes out of stun. free heal in other words. and with a 3 minute cooldown on nature's swiftness you can use it as often as needed. the heart of the wild gives you the mana to pull it off.

another one that is good for pure feral diversity is this one...
http://www.wowhead.com/talent/?zzLVhZEg0sc0dtV htis is good for maximizing damage in bear or cat form.
i used that oen before i switched to HotW/NS on my other server (my first druid)
well i hope all of this helped you out a bit.

ive heard moonkin form is really good in PVP, but thats just what ive heard.

Moonkin is the BEST for PvP. You won't do incredibly well, but it's definetly a unique and REALLY fun experience. People see a moonkin though, and you're instantly the target of 6 people. You'll want natures grasp if you moonkin PvP. You die alot otherwise.

Really though, try it a bit. It's hilarious.
EDIT: I mean fully talented nature's grasp. You want the 100% chance for the warriors smashing you.