Biggest match winner for India?

As a bowler out of your list Kumble & Kapil Dev too & from the batsmen, its a tough choice b/w Gavaskar & Tendulkar. I will go with Gavaskar, as he had a better record in making India win, as you have said, till Gavaskar was there, we had every hope of winning. This is his only quality which makes him outshine even Tendulkar or Dravid both !!