I've never looked at undead creatures' stats, largely on principle. I hate undead things. So sure, skeletons would be better.
I met a necromancer once who was very well-built. He had all kinds of feats and stuff. He wouldn't have made a good IT guy. IT has to have at least a little bit of a customer service aspect...this guy killed everybody and made them into undead servants. (I was playing a Radiant Servant of Pelor at the time. I one-shotted his zombie white dragon with a greater turning. Then a party member turned on me and killed me. I hate being the only non-evil party member.) Anyhow, this guy was just a cleric I think. But you could get some dread necromancers involved. You would need a LOT of undead.