I have a little different opinion here, no doubt no one can even think of any replacement of Rafi Saheb, but Summerji, if we are not comparing these two legends than even Lataji is incomparable by all means. She is the voice of Goddess Saraswati. I have heard many claims against her like Suman Kalyanpur or Anuradha Podwal, but no one can come closer to the divinity of her voice. From Mahal to Anpad, Bobby, Satyam Shivam Sundara,Ram Teri Ganga Maili, Rudali, Dilwale Dulhani Le jayenge, Chandni……and thousands more……woh feeling, andaz, awaz ki khanak, sateek sur…..ultimate beauty of female sentiments…I don't think anyone else can replace her. IMO Rafi Saheb is Suraj and Lataji is Chanda…rest others are Stars. 😛