I'm currently about lv 52 Conjuration and to me the Atronachs are clearly superior to the raised dead. The cast time is quick, the amount of Magicka with the perk is negligible, the amount of hp they have is acceptable and the damage they do is great.
The zombies take a long time to summon. They do this animation where they rise up, and it's cool, but not combat effective. If you don't put their weapon on their body before you raise them, they are unarmed and sometimes run away from the fight to get a pickaxe, while their original weapon was at their feet. Once they are in combat they are good though, no problems there. Raised mages are great IMO.
TL;DR: how do you effectively use your Zombies in combat?

Thanks.
