I doubt though that it will be the case for everything. Hell, isn't Death Knight a template anyways?
But I digress, I imagine minions will be distinct when it comes to more powerful creatures/more distinct. Well hell, look at the Tiefling and Gnome cartoon, he is a Gnome but his minion is a badger.
I imagine for the death knight example it be something like, "as you crest the hill you see the death knight on his black steed, surrounded by his undead soldiers. You charge through them, slaying the soldiers left and right as they try to pull you down before you reach their master."
But then with something like zombies where you can't really tell right away what is what, you can have soldier level zombies wandering around in a sea of minions. So with the Cleave example, "the fight beheads one zombie, and cleaves straight through another. (Uses action point), he shatters the bones of another, he lifts his sword and swings down it stops; the hard bone of the zombie has stopped his blade. The fighter begins to notice the long bone claws this zombie has..."