Well, coinciding with the notion of Rediff's monthly long tribute to Indian Filmmakers ten best Indian films, I've encountered ahead start on Karan Johar's ten best hindi(or Indian?) films. I wonder, beyond Hindi films, do these elitest Bollywood directors watch anything else? Anywho, I got this from another site and it's supposidly from the April issue of Movie Magazine.
1. Kabhi Kabhi - Yash Chopra
2. Hum Aapke Hai Koun - Sooraj R. Bharjatya
3. Lamhe - Yash Chopra
4. Kagaz Ke Phool - Guru Dutt (What

Karan has the wits to acknowledge Dutt)
5. Guide - Dev Anand
6.Sholay - Ramesh Sippy
7. Dil Chahta Hai - Farhan Aktar
8. Lagaan - Ashutosh Gowariker
9. HDDCS - Sanjay Bhansali
10. DDLJ - Aditya Chopra