Melody, I've had the Sherata buffet and it's not as good as SeaStar's buffet, it's really limited. However the regular menu at Sherata's is good, I've eaten there a few times.
Norma's at the SeaSplash is closed and they have new owners renovating the place, when I was there in Dec. they were serving JA food and I didn't hear
anything about them opening a mexican place however the owner Jim/boombastic has been posting on here frequently we should ask him.

My Beach Faves:
Cosmo's-good authentic JA food at good prices
Cheap Thrill Corner (patty shack between Treehouse & SeaSplash)-Awesome Jerk Chicken and homemade soups
Treehouse
CountryCountry
Kuyaba