Ok kiddos, this isn't meant to be a dick measuring thread but I'm sure that as a community we can figure out how to make it one and flame the shit out of this topic.
Favorite units to use -
1 - Fire mages. I don't think I need to explain why.
2. - rocs. Heavy armored and very fast transport. Great for witches, mons, orcs, acos, FM's, and my new favorite - rats.
3. - berserkers. Cheap unit. Stupid damage. The speed boost they get on paved surfaces is just rediculous. If you keep your monarch guarding the citadel you can overwhelm someone pretty quickly.
4. - wolves. Not meta game unit, but with some support and good micro it's possible to hold of a thick stream of units with them. Great damage, speed, and an all around good auxiliary unit.
5. - lighthouse.
Top five I hate seeing on the field.
1. - cannons
2. - neo
3. - fire mages
4 - roc
5. - rachys monarch.