I completely disagree, the Trolls do not outnumber the Goblins, those guys are CRAZY large, and if they do not outnumber, their technology would. I just wanna remind you about that Cannon in Azshara. And no, the Orcs are larger than you think, I think their population is on wowpedia.com. Why do you think they are called the horde? Because the horde are crazy large, their numbers alone was enough to burn Stormwind during the second war without the elves, trolls or taurens help.