Necropolis versus Orcs.

I'll add based on my own experience... I don't recommend taking Free Cyclops for long campaigns.

I remember an Archangel taunting me... two of them attacking my 200+ Cyclops.
They didn't do any damage... mine hit them with clubs, and... my 1000+ Centaurs went to the afterlife.
I was just speechless!
Now I take Bloodeyes.


Added 5 minutes later
For those who still prefer Free Cyclops:
Don't place them next to your own troops.
Freedom, in the context of Cyclops, is a very "peculiar" thing.