Aankhen is one of his biggest grosser. I don't think any comedy genre like that received an ATBB tag in the 00s and this decade apart from 3 Idiots.
He was a good director and always made fab movies in the 90s era for masses and family audiences. It's hard to say which movies was his best but I like Deewana Mastana, Judwaa, Hero No. 1, Coolie No.1 and Shola Aur Shabnam the most.
Today, I feel he isn't the same as he was in the 90s and 00s in terms of making a good movie. I can't remember the last time he made a good film.