The Economist reports:

Cities with highest taxes for travellers (including general sales taxes), average daily cost: 1. Chicago $40.99 2. Seattle $37.95 3. Dallas $37.26 4. San Antonio $37.20 5. Houston $36.83
Cities with lowest taxes for travellers (including general sales taxes), average daily cost: 1. Portland, OR $21.49 2. Detroit $22.37 3. Honolulu $22.55 4. Fort Myers $22.91 5. Fort Lauderdale $23.69