THIS PAGE IS OBSOLETE. PLEASE VISIT THE UW CSE SEATLE LIFE WIKI!
We got great rates from Alamo. No idea yet how the service is/will be.
Hertz is pretty expensive, but the service was good. Make sure someone else is paying before going there.
A good online search tool is: http://www.travelnow.com/cars/search.jsp.
I have always gone with Enterprise, they are not the most pricest and have a reasonable range of cars... and good customer service... never had any problems. I normally use the one on Roosevelt and 55th (approx), except on weekends.
I've rented from a couple of places in Seattle, and the one I recommend the most is Enterprise, specifically the one at 56th and Roosevelt. Decent price, friendly staff, and good service, including giving you a lift somewhere after you drop off the car.