Hey guys, nice thread!
Some random comments from my side:
I try not to play sac outlets like Sakura-Tribe Elder unless they're really worth it. basically you trade 1 permanent for another, while WW wants you to have as many as possible.
What works for me is Arbor Elf , Llanowar Elves , Farhaven Elves , Wood Elves , Priest of Titania and Heritage Druid in combination with Keeper of Progenitus (I play kind of an Elf subtheme, so the WW comes more like a surprise.)
For upping my permanent count I have Khalni Garden , Wirewood Hivemaster , Siege-Gang Commander and Wort, the Raidmother . If you are more combo, you can substitute Siege-Gang for Deranged Hermit
Finally, what really rocks is a copy of Primal Forcemage or Beastmaster Ascension to pump all these small critters to become a real threat (in addition to the Bogardan Hellkite s and Rampaging Baloths )
If you prefer the "griefer" playstyle, you could check out the insanely unfair Sundering Titan or Malfegor , who takes away your opponents creatures immediately after they get them
Anyways, keep posting your latest crazyness with WW, it's a fun card