I travel often & I thought it was interesting that ACE Car Rental was recently ranked the #1 car company, considering I've never heard much about them. Enterprise was the # 2.
Here is the link to the rankings:
I have not used ACE, but I have used National, Enterprise, Avis, Hertz, Thrify. My favorite by far is National. The customer service is great, the cars are taken care of, the "emerald isle" where you get to choose any car in the isle is a great concept.
How about everyone else? Who is your favorite rental car company?