I am planning to rent in car at Merida airport (MID) in November.

Does anyone have any advice on rental cars in Merida or Mexico in general? I rented a car in Cancun about two years ago from Avis and everything worked out fine, except for the huge hold on my CC.

So how do Alamo, Avis, Hertz and National compare in Mexico? I checked prices online and it seems they are not that far apart.