I use National Car rental exclusively. The customer service is great and I love their selection of cars. Insurance is always going up be a killer, but you can check with your cc company and see if they offer rental insurance. Amex does and I use their insurance and decline the rental company's. The one place I won't use is Hertz. I've had constantly crappy service with them and the last time was the killer. They tried to rent me a car with no hubcap and then got an attitude when I didn't want to take that car.