Warcraft was usually supposed to be a Warhammer game but something didn't work out and Blizzard didn't get the license so they made a ripoff. Then they decided that Warhammer 40k is pretty cool and made a ripoff of that right away.
Orcs were defined by Tolkien according to Wikipedia, no fairytale origins. The name comes from latin "Orcus" (same root as ogre). Ogres and trolls are from mythology, as are goblins.
EDIT: Argh, take too long for posting and see others post your points before you are done.
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Definately like the style in this one better, only wish it was 40k.
Orcs were defined by Tolkien according to Wikipedia, no fairytale origins. The name comes from latin "Orcus" (same root as ogre). Ogres and trolls are from mythology, as are goblins.
EDIT: Argh, take too long for posting and see others post your points before you are done.