Yeah, you're really something. With skillful play, you can even give Orcs a serious fight in the late game. You just need to harass their solo units (or your friend's units;)), read advice from experienced players, maybe try to develop your own tactics, and you might find a way to counter them. After all, they're not unbeatable.
It would be interesting to try a defensive strategy against Orcs, using Humans or Dwarves (of course, with the "Readiness" skill). I haven't played much against Orcs myself, as I'm mostly playing as them right now, but I should give it a try...