I have both the Dragonrune Body guard orcs and the Knightmare games Iron orcs.
Both are great. Easily the best black Orcs produced since Bob Olleys black orc range in the late 80's (Citadel/Iron Claw).
The Dragonrune bodyguard Orcs are beefy multipart and make excellent black orcs.
The Knightmare Games Iron Orcs are some of the best Black Orcs Ive ever laid hands on. They are similar the Citadels 90's Black Orcs but packed with more detail and character.
If it wasn't for the Knightmare Games Iron Orcs I would have said Dragonrune bodyguard Orcs are the best Black Orcs around.
And totally metal!
Sadly I haven't had a chance to paint either set.