Cool colors are where it's at. Blue, gray, even purple. The only reason I can think of an orc's skin color affecting sales is that a green orc might blend in with forests and other backgrounds they might appear in...either that, or marketing is made up of blue orc facists trying to keep the green man down. Fight the power!
That he would. Hands that turn into drills and pile-drivers would be nice too. You know, it's kinda funny that an orc would resemble Apocalypse, given that the former are normally considered barbaric and un-evolved whereas the latter is...well, Apocalypse.