Orcs versus High Elves.

Of course, Hegesh is a cool hero, and starting with her is enjoyable, but I still choose Tilseck; in my opinion, he's better because he starts with machines. Hegesh needs to get lucky with the monsters; if there are archers or dryads, or blades in the mines, Hegesh will have big problems, and that's not a smooth start. Despite all this, Orcs need to be played in short skirmishes because if the opponent has dark magic, all the Orcs are doomed.