I am on the east coast USA at present and hired thru Argus (National supplied car) without any problems - usual try to upsell additional insurance as mentioned above upon car collection but declined offer - I had the choice of selecting a vehicle from those in rental category from the lot - good selection of relatively new cars . Have hired a car on the west coast USA next week also booked via Argus (Dollar will be supplier).So far so good.
I had a bit of luck recently as well (i only ever book cheapest car on the lot).
Las vegas (LAS) - Dodge Challenger (Alamo)
San Francisco (SFO) - Chevrolet Camaro (Alamo)
Not a bad deal for $30AUD day all inclusive