Other Car Rental Programs (ie. Alamo, Enterprise) - MIA - best rental company?

for those that have rented cars from Miami international airport, which car rental company is the best (or ones i should avoid)?
i have a pretty good rate on a std suv at avis and budget, not sure which one i want to use. also plan on checking into last minute rates (not going until may-june) i had my eye on an alamo or national premium class. they are cheaper on sunpass rates too. also still looking at sixt since they have more european cars to offer.
also my std suv at budget is a ford edge and avis is a Chevrolet Equinox or similar. how likely am i to get this specific model? think i would rather have the edge.
thanks.

Not that much difference between them if you're not a frequent (elite) renter.

Alamo and Sixt tend to be a little bit cheaper; their cars usually have more mileage on them and are not as clean as those from Hertz and Avis, but not the point of being a deal breaker.

There are far more variations between cars and locations than between brands.

i keep looking for the best prices. i was really just wondering if someone had rented in mia and had a good or bad experience to tell me or warn me off of a certain company. thanks.