To be honest, I haven't seen one of these polls in awhile... Fairly simple, pick your race above, and pick your two favorite units of that race you can't get enough of. Doesn't have to be anything fancy, just a unit you prefer over the others for one reason or another, even if it's a Tier 1. I'd have to go with Terran for preferred race (probably having something to do with most newbs at StarCraft end up going with Terran to start off), and Ghost/Tanks for my two favorite units. While not the best combo to use together, the Ghost, like almost all Terran units, provides useful abilities. Whether they're actually taken advantage of is always up to the player, however I voted them as one of the more underused Terran units awhile back simply for that reason. Lockdown is a Godsend. Tanks, on the other hand, are one of God's most beautiful creations. Levels like LT and Dire Straights beg for their usage across the terrain. Again, very weak on it's own, but I'm beginning to suspect I have a growing fetish for them.