The choice we make should be a very highly rated actor who in reality does not deserve the rating. To that extent we should exclude Abhishek, SRK, Salman etc. because nobody takes their name in the same breath as Nasseruddin Shan, Om Puri, Amol Palekar, Dustin Hoffman, Merryl Streep etc. My surprise choice is Kamal Hassan. He is very highly rated for his very multifaceted performances. I nominate him for being most over rated because his individual performances look very authentic, but when his performances are studied as a whole and also when we scratch the naunces of each role, we find that he tries too hard to look casual and natural. This is like taking a lot of care to look carefree & the care actually showing!! To an extent this is a trait shared with Dilip Kumar who used to practice method acting.