I travel often and usually use which ever rental company offers the best deal through Hotwire or another online discount site. Recently I have had two very nice experiences with Alamo in Las Vegas and hope to always use them from now on.
First they have a kiosk with a staff member to assist you so bypassing the check-in line is quick and easy. Also you get the benefit of missing the agent at the desk whose job is always to up-sell you a bunch of nearly useless and overpriced insurances. l have never looked forward to saying "no" at least three times when picking-up a car.
On my last rental they ran-out of convertibles so I was quickly asked if I would accept a luxury car. With two caddys, a Chrylser 300 and a BMW to choose from I was stylin in Vegas in my Bimmer. I enjoyed the car greatly and would normally never spend my $ on a luxury car. Thank you Alamo.