for me it tends to be:

Adders: Sneaky tricksy, we let the other two duke it out and steal mid from them whilst maintaining one or two bases. Doesn't always work.
Maelstrom: ZERG! CRUSH! TIL SEA SWALLOWS ALL!!!
Flames: Charge into battle no matter how many enemies they're outnumbered by, and flee after killing one or two people.