I'll just put you down for Eldar then. I think. I have no idea what Eldar spam though with 7 classes.
FLAWLESS VICTORY But to actually answer the question Eldar always spam the most OP thing they had at the time. At first it was Hawk Talon wielding Flyers, then it was Banshees (lol melee), Then it was Warlocks (lol stacking heals), Then it was Fire Dragons,(lol meltas) Now its just Wave Serpents(lol roadkill)
Spesh Mehreeens, becoz they don move much when I iz shootin' them. (I alos put down a vote to see the results :3 )