Hey guys, finally getting some gear in (I don't have nearly as much time as i would like to farm BG's, so my gear has taken a while to get up to par) and I am starting to win some 3vs3 wins in, i ended up this week with 1615. In case anyone was curious, heres armories of my guys...
Yarr (main, best geared, since he was 70 about 2 months before the other guys hit 70): http://www.wowarmory.com/character-s...restone&n=Yarr
Angelb: http://www.wowarmory.com/character-s...stone&n=Angelb
angelf: http://www.wowarmory.com/character-s...stone&n=Angelf

A few observations:

-Without a dedicated healer, Healing macros are very important. Setting up 3 separate buttons, one to heal each member, is key.
- In a cc-dominated bracket, without anyone to dispel, I have found it advantageous to give all 3 shamans a pvp trinket. I use a macro something like this:
/use Medallion of the Horde
/use Icon of the Silver Crescent
/tar focus
/follow
/cast Elemental Mastery
/cast Nature's Swiftness
/cast [Target=focustarget] Chain Lightning

In order to pull off the burst combo even if 1-2 of my shamans are CC/ed or stunned. Helps immensely vs rogue teams. The /follow ensures that they are facing in the right direction when it goes off, since most CC's cause you to wander aimlessly, you can't take facing for granted!

If you guys want i can cover some of the strats that I use vs various cookie-cutter teams.

I am hoping that once I finish getting PvP sets on all my shamans, that I'll be able to break 1700 and maybe even get higher. Maybe not as viable as 4 shamans in 5v5, but i think it's at least viable for 1700+.