Hilton HHonors - Raleigh Durham RTP - Homewood Suites or Doubletree Suites?

Title says it all.

I haven't tried the Doubletree Suites, but was entirely happy with the Homewood Suites the one time I had to use them. (I decided to get a room near the airport instead of staying at home when an ice storm was forecast for that night and I had a flight out of RDU scheduled the next morning.)