I'm sure she would've been fine.
Although Amisha Patel who I'm not a big fan of, was absolutely delightful in the film and I can't see anyone else in that role because she was that good.
If we are comparing debut performances then Kareena was much better than her in Refugee.
Interestingly as others have pointed out, Karena-Hrithik films/chemistry have always been a bit disappointing/weak.
But as this would have been their debuts together maybe it would have had a rawness to it and less melodramah than the likes of MPKDH.





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