This is it. According to your taste and movie parameters.
They are 4 masterpieces regardless. This is one of the ultra-rare franchises where each installment is different from each other, and every movie is a supreme triumph in its own way.
Anyway, my chart:
1- Mad Max: Fury Road
2- Mad Max Beyond Thunderdome
3- Mad Max 2 (also known as "The Road Warrior" in USA)
4- Mad Max