its definitely shahrukh khan and amitabh bachchan.they are good actors but they dont do kinda roles.they want to fit in every frame.shahrukh makes a buffoon of himself.unless he is given roles like chakde or swades.amitabh wants to be a part of every movie that he shamelessly does movies like boom,nishabd.man,u have grand daughters even.kamal hassan is the best actor the country has produced after shivaji ganesan.he can play a rowdy role,decent one,serious,comic.anything in the earth.i would say aamir is the most talented in indi cinema.so the most overrated award is shared jointly by shahrukh khan and amitabh bachchan.mr bachchan se bachao
