I have always admired the Conquistadores, because it was people like them that made Europe strong. I will admit, they were nasty bastards, but they had cojones. Yes Cortes relied heavily upon native levies when fighting the Aztecs (or Mexica as they called themselves), but for the first few battles, when he had no auxiliaries, it was a few hundred Spaniard veterans vs thousands of indigs, and Cortes won. Even if he used deciet to gain enterance into Tenochtitlan, pretending he was a god, that was a cunning strategy, not an underhanded trick. Know your enemy.
For all who are interested, Mel Gibson is making a movie about the fall/self-distruction of the Maya. It should be out before too long.