IMO i gotta go with Cormega..but as you said it is extremely difficult. Both would be pretty high up in my top 10 list, however i'm usually feelin' Cormega more.

Tracks like, "They Forced My Hand", "The Saga" and "Fallen Soldiers" are dope, however so are "Get Down", "The Message" and "Thugz Mansion N.Y" are extremely phat as well..

But if i had to decide, I'd choose Cormega, but thats just my opinon.