Great thread idea, Neo. Personally, I like to experiment a lot with my armies, but one that has never failed me is the marro. Its' a bit changeable, but the base is pretty much the same.
The hive - 160
X1 Stingers - 60 (Yes, just one)
Tor-Kul-Na - 220
X2 Nagrubs - 60
500 points, 11 hexes, plus the hive
Fairly straight forward. All of the OMs go on the hive. Then, depending on what your opponent does, you can either use the Nagrubs to move Tor-Kul-Na (Note that while the Nagrubs need to stay within 12 spaces of the hive, Tor-Kul-Na can go all over the board.) or move the stingers onto a high ground. It ussulaly wins without much trouble. Of course, ahvign two sets of stingers would be mroe safe, so if you want to give up the tank for a smaller version, try
Hive - 160
X2 Stingers - 120
Su-Bak-Na - 160
X2 Nagrubs
500 points, 14 hexes, plus the hive
Same idea except that Su-Bak-Na is slightly more maneuverable and has hive supremacy. Because of hive supremacy, I think this one might a bit better, especially with the extra stingers, but the other one is fairly effective also.
