The standard bar menu has Dogfish Head's 60-Minute IPA, which is arguably one of the best beers of its type on the market. I used to get it pretty often when I lived on the East Coast, but now that I'm out in Middle-of-Nowhere, America, it's one of the beers that I miss the most. Other than that, if you're looking for a unique flavor, the non-Food and Wine Fest selection is fairly scant, but you can find a winner here and there, you just have to know where to look.
For instance, I'm pretty sure you can find both Brooklyn Brewery's Pennant Ale and at least one selection from Ommegang in Il Mulino. Portobello and the Wave both have full flights of Orlando/Florida Brewing Company's selections. Old Key West and Olivia's feature Key West Sunset Ale. None of these are exactly small batch, but they are certainly a bit more regional than the conglomerate-backed stuff that is available everywhere you go on property. Just pay attention to the taps and menus in every lounge and restaurant you visit. One of them is bound to have at least one thing that piques your interest.