Gah, I can't remember a post on the subject with more modern cliches than this. They didn't topple the Aztecs with 500 men, they did it with 200,000+, and they did not view them as primitive natives, but as a large civilization full of plunder. The accounts of the conquistadors are full of wonder at the size and opulence of the places they went to.Peace with Spain ? Cortez brought a group of 500 hundred men, and toppled the Aztec Empire. If Spain ever would find itself at war with Aztec Empire(not that they would even bother, since to Spain it would be a war with primitive natives, that they would view as half-naked barbarians-not my view but stating the attitude of that time), then Aztec Empire is gone without a question.
None of the entities mentioned have a chance of survival. Only the Inca with very big butterfiles, can dream of becoming a client state of European power, to be absorbed as a province later, barring PODs like total devastation of European civilization(of cours I mean post-Columbus contact)
Not sure why you think the Inca had more of a chance, when they were conquered by far less, the last Mayan city-state fell in 1647, but even then they had several major rebellions, one establishing a Maya Free State that lasted from 1847 to 1933, and they still control much of Chiapas now, and the Aztecs didn't fall over quietly.