We arrived about 11:30 pm on May 23. Checked both A and B sides. Only interesting car was a full size pickup with an extended cab - not exactly a great car to use for a vacation. Other than that it was the usual assortment of mid and full size, with a couple of small sports coupes (Mitsubishi Eclipse perhaps). No minivans or SUV's.
I passed on National (where I am an EC member) and used my Avis (where I am an Avis Preferred member) ressie and got a nice Lasabre (upgrade) with my full size ressie. All I had to do was call and cancel my National ressie with no problem.
The possibility of getting a van or SUV on the Aisle will keep me using National now and again. However, Avis treats their "member" customers better than National. We paid $30 less for our Avis full size ressie than we would have paid for National - and we were upgraded to a premium car.