No, they did not. Illness and plague wiped out most of South and Central America. Wars of conquest did not kill remotely as many in comparison. Moreover, were

No, they did not. Illness and plague wiped out most of South and Central America. Wars of conquest did not kill remotely as many in comparison. Moreover, were the Aztecs to have a land boundary to Spain, and were they able to defeat them, the Aztecs would have had no problem slicing up Spaniards and eating their beating hearts for dinner as well. So the better team definitely won in this case.