All of the garden views at the GF are very nice and you'll have either a patio or balcony. The only room you probably want to make sure you don't receive is a dormer room. They have a smaller, solid balcony.
You might be a little more interested in location of the building, so I'll give you a quick run down:
SagoCay: furthest walk to the pools, beach and boat dock, closest to main building (Gasparillas Grill 24 hour counter service), quiet building, garden views will include seeing the monorail go by your balcony ~ could be fun for little ones.
ConchKey: furthest from the main building (bus stop & monorail), closest to the boat dock, 2nd furthest from the pools and beach, quiet building
Boca Chica: convenient location, central to everything, courtyard pool is right outside the building entrance (pool is open 24 hours, so sitting on your balcony in the evening, might be a little noisy)
Big Pine Key: convenient location, central to everything, courtyard pool is close to the buildings front entrance (pool is open 24 hours, so sitting on your balcony in the evening, might be a little noisy)
The resort is nicely spread out, but not too big. The total walk between the 2 furthest points is probably no more than 3 or 4 minutes. A little secret is to request a corner room. They are usually a little bit bigger and offer 2 balconies. Because they're on the end of the building, you might get a bit of a water view also.
Tammi