At first we wanted to stay at Double tree, but it was fully booked. We came to Hilton KL and chose a room on Executive level - it was one of the best decisions ever!
The view is marvelous, both my partner and me were literally stunned at the view for a while - it looked greater at night too.
Beside that, location is good, right at the center of KL. They have bar, good gym, great swimming pool (well, just a bit too crowded, but it was fine)... we're very pleased with our stay.