Warlocks - with Fury units, against archers - with Huntress units, no losses
High Elves - using a combination of Nymphs and Ents, plus Initiative and strong Archers - no losses
Mages - Razazak, Golems, Gremlins - minimal losses
And so on. The significant loss in growth rate when building Cyclops at the expense of the Castle and Stronghold is obvious.