Orcs. Upgrade or alternative upgrade?

1. Trappers. Traps can be helpful, even very helpful. 2. Battle Centaurs, definitely. I have doubts about the Nomads because of their retreat; they might run off somewhere else. 3. Orcish Warriors. I don't remember why anymore, but I think it's because of their second attack. 4. Daughters of the Earth. I remember playing as Haven before, but they don't seem to cast their lightning very well. 5. I get them mixed up, but I think it's Executioners. The red ones, anyway. I don't remember why, either. It seems to be because of their two attacks. 6. Paoka. I like to eat them. It's better than waiting until the end of the battle to heal. 7. Red Eyes. The Free Ones wiped out half my army and lost my trust.