Whether Lakshya is gonna be a better film than Main Hoon Na is hardly dependent on the lead actor. It's the filmmaker who makes a film and if Dil Chahta Hai is anything to go by, Lakshya will be good to say the least - Hrithik, Shah Rukh, Amir, Govinda or Rajnikanth is inconsequential. I'm sure Farhan will choose whichever actor he does for a reason. Good filmmakers can get great performances out of even the most mediocre actors...