I rent out of DAY on a pretty frequent basis. Generally I agree with what's been said here, but would add that the ES usually provides a feast of well-optioned SUVs (Explorers, CX-9s, Grand Cherokees, Durangos, Enclaves). More than occasionally, there will be Lincoln MKSes/Caddy STSes available in the ES area.
Like
ralfp observed, it can also be famine. I begrudgingly picked out a 12k mile I-4 LaCrosse yesterday as it was the best vehicle in ES.

It smells like a cherry-flavored chemical toilet.
There is a "Cool Cars" row but they've tightened up giving those out without a substantial upcharge. Other than a seemingly ever-present VW CC and Dodge Charger, it seems like higher optioned EA sedans are parked with the "cool" cars.
The good thing about this location is that they'll pretty freely let you pick out something from Alamo, even if its a vehicle in the National "cool cars" row. Finally, standard emerald club members should not be bashful about asking a lot attendant for access to the ES vehicles. More often than not, they'll tell you to help yourself.
I am heading up tonight to rent a car for a friend, so I'll report back if I see anything different.