I always preferred the Hilton to the DT, despite staying more at the DT recently. With a limited breakfast provision, plus all the associated renovation work, I would be 100% at the DT instead. Both hotels are close to all of the stuff in the area, so no real up or downside in terms of location by switching. The Hilton is a bit quieter in the rooms, whereas some at the DT are poorly noise proofed. That is about my only negative for the place though.