Another question - would the zulu body sprue or the ancient body sprue work best for gladiator bodies?
my intent was to use both for variety.
similar to the idea that it is "too cool" to pass up arena ready gladiators for a slave revolt, the question is "what are you trying to represent?" if you are trying for physical representational accuracy, that's cool, but it really ends somewhere (most people have a couple dozen actual skin tones, are you putting all the calluses on the right places, different calluses for swordsmen and spearmen, etc.).
for my revolting armies :), i usually like to have civilians modeled, even if they might have captured arms. having a shepherd modeled is a good visual cue in battle that this guy is not a trained warrior. likewise, having slaves in arena gear is a good visual cue on who is going to plow through others in hand to hand, whether they are fully decked out or not.
so back to gladiators proper, i think representing the variety of the owners' and fighters' backgrounds is key. we do have a lot of visual records from the past about how they "should" look, but why should we believe the ancients were any more above memes than we are?