my suggestion would be either the itc maurya or the taj mahal hotel....flip a coin....you can't go wrong with either....also, the new hilton garden inn is about to open later this month....i went to see the place this weekend & really liked it....i think it opens on the 26th or 28th of this month so if that fits in with your travel schedule then its another great option, given a room rate of only rs. 6,000 per night....also its right next to delhi's best mall....