My choice is Budget because it is basically Avis at at discount.

You have to be careful that you are not charged +$50 (or a similar outrage) if you log less than 75 miles on the rental and if you do not make sure the check-in person knows that you filled the tank.

It amazes me how few travelers sign up for car rental programs. At Sacramento airport last week the regular Budget line was at least a 45 minutes delay.

The Fast Break kiosk took ~ 90 seconds from arrival to keys.