How were the Olmec Zapotec and Maya cultures similar and different?

The Olmec were a society in the Veracruz and Tabasco area of Mexico between 1400 and 1200 BC. They carved the giant heads. They had a writing system. They did not build big cities.

The Zapotec were a society in the Oaxaca region of Mexico from 400 BC to 200 AD. Like the Olmec, they had human sacrifice. They had hieroglyphics.

The Mayans were around from 2000 BC to 250 AD. in the Yucatan peninsula of Mexico, Guatemala, Belize, and Honduras. They practiced human sacrifice and played games with rubber balls.