I'd love to see an option to hide empty folders. I frequently create project archives on my PC using WinZip, and delete all old files so only changed files are in the zip archive. When viewing these in BetterZip, its hard to locate the changed files because WinZip stores all the empty folders from the original full archive.

Being able to hide empty folders (which would include folders that contain only other empty folders, recursively...) would be a tremendous help to me.