The Hilton has a very nice Easter brunch. We ate there a few years ago and they was a big selection of everything, including fresh seafood. Plus, it's close to the DVC and on the ocean. You will want to make a rerservation early if you decide to go there. HTH!
We are going to make the drive to Savannah. We got a reservation at the Lady and Sons for their Sunday buffet. Don't know if it will be extra special for Easter or not, but when we knew we were going to be at HH for Easter, that was our top choice for an Easter meal.
OOH, another thing to note. This year Easter Sunday is the final day for the Heritage Classic (PGA golf tournament in Sea Pines). The island will be packed. Whatever you decide to do, make a reservation (someplace, anyplace) now.