on offense i have no stragety personally, only done wintergrasp a few times on mostly defense...
But on defense i hide right inside a wall below the stairs to get to the turrents, and i drop my totem farm and nuke the crap outta everyone that comes in,

it's freakin awesome! man i'm at work now and i got the itch to do wintergrasp, i might hit my neighbor to get some pvp goin.