Pacal the great, ruling until his death, was a great mayan leader. His impact on society was mainly cultural, ordering the conrtuction of many buildings.
Moctezuma I was a very important Aztec ruler, that reformed many rules in the society such as economical and political ones.
Huayana Capac is a famous Inca empreror, mainly because he lived in the times of the Spanish colonization, and did great things.
Hope it helped,
BioTeacher101