I travel often, so I spend a lot of time renting cars from various car rental companies. Unfortunately I have had quite a few bad experiences, like many. If I have time to plan ahead, I generally will rent vehicles from Alamo. After doing a complete price comparison across the board, including all the major car rental companies, Alamo will usually come out with the best price for me.
Most of the time I am fortunate to have extra discounts and promotional codes which help me obtain a lower price. Every time that I have obtained a price quote from Alamo, it has been considerably less than their competitors. I have never had a problem getting a vehicle I was happy with.
The employees from Alamo have always been accomodating, this being something I could not say for other companies in the business. If you have never rented from Alamo, give them a try.