I have a theory...I've put a lot of thought into it and i must admit it makes me proud My theory is to take one of my many daedric shields and enchant it with command creature level so and so as a CE and then run out in the wild and gather up Daedroths, Ogrims, Dremoras and possible Golden saints and make them follow me into my stronghold where i let them lose. Does my theory have a chance or will it not work as i plan?

Just as a guess, but would they not stop obeying you once you left the area? Of course, once you returned you'd have to wear the shield to stop them ripped you limb from limb, but I guess its not a major thing.
Also, is there a limit to the number of creatures you can command with those spells?