This might be just a personal preference, but I find Cleartrip's UI to be far superior to any of its competitors.
Btw, I just remembered another good example of Cleartrip "getting it". I was trying to book a hotel. And due to messed up internet connection it didn't go through. I think I attempted to book the same hotel twice or thrice. This was after midnight. The very next morning I get a call from Cleartrip enquiring if I was facing any issues with their website, and offering to do the booking over the phone.
