Las Palmeras, by Hilton Grand Vacations is likely the closest, it is more hotelish than most timeshare, as it was a hotel that was converted. If you don't plan on staying on property all that much but want something close it is one of he closer choices. If you want a more resort feel than HGVC Seaworld. Marriott Harbour Lake is also near this Seaworld location. Parc Soleil® by Hilton Grand Vacations is just on the west side of the highway, and then you are basically in Disney's backdoor.
It is all not that far apart, so book something you want in quality and just drive it.