This is the worst thing about Hilton HHonors right now is there is no way to find a hotel close without searching each individual hotel chain website. Supposedly they are going to fix this very soon ... Until then:
Doubletree Castle (most unique of the bunch)
http://www.doubletree.com/en/dt/hotels/index.jhtml;jsessionid=TWIMXLYK5XCE1J31AORMHZQ?ctyhocn=MCOISDT
Embassy Suites, two on I-Drive, Jamaica Court is closer to USF/IOA (not sure this link is going to work ... if not go to
http://www.embassysuites.com and search in Orlando and look for the two with International Drive in their name)
http://www.embassysuites.com/en/es/...S=/en/es/home_tab_quick_search.jhtml&x=16&y=9
Hampton Inn (again, not sure if this link will work, if not go to
http://www.hamptoninn.com and search in Orlando and look for two with International Drive and two that have USF in their name)
http://www.hamptoninn.com/en/hp/hot...=/en/hp/home_tab_quick_search.jhtml&x=35&y=10
Homewood Suites, one by USF (again, try
http://www.homewood-suites.com if this doesn't work)
http://www.homewood-suites.com/en/h...S=/en/hw/home_tab_quick_search.jhtml&x=12&y=9
Hilton only has a Garden Inn down by Sea World and of course a Grand Vacation Club there too (again, try
http://www.hilton.com if this doesn't work)
http://www.hilton.com/en/hi/hotels/...=/en/hi/home_tab_hotel_search.jhtml&x=14&y=11
I haven't stayed at any of these specific properties, and have never stayed at a Hilton Vacation Club, but that's way down by Sea World too, my personal preference based on past stays at other properties in the chains would be Embassy Suites, Homewood Suites, Doubletree, and Hampton Inn.
If you're redeeming an award make sure to look at the HHonors page for each hotel property (click on a specific property then click on the HHonors link) and see if any of the hotels offer point stretchers for when you want to go. Point Stretchers offer excellent award value.