User blog comment:GSFB/Orcs vs Zombies/@comment-422690-20130112155755

I'm going with the Orcs on this one. They may not have much in the way of ranged weaponry, but they do have the arms and armor needed to fend off zombies. Their rank formations (as seen in the sieges of Minas Tirith and Helms Deep, as well as in the opening sequence of Peter Jackson's adaptation of Fellowship) are sufficent to keep them protected, and the steel will hack the Zombies apart.