The island is mostly rather low in elevation - there's a good sized hill across the Sound from Hamilton but if it's more than about 200 feet high I would be really surprised. Hamilton will be sheltered to some extent by that hill to the south but it's very low lying. Many other places are going to be completely exposed.
My parents spend a lot of time at St. Barts in the French Antilles, and that island (which is much more mountainous than Bermuda) was really HAMMERED several years ago. Basically swept bare. I do hope this storm veers away from Bermuda at the last minute.