Which is cheaper and easier to use? DVDFab or AnyDVD?
If you download DVDFab you get 1 month free. Just uninstall and reinstall the latest version after a month, and it's always free.
There's a catch, though. DVDFab essentially creates an image of the movie (always use the "Main Movie" option) on your hard drive. You then have to mount that image to a virtual drive and go through the reauthoring process with whatever software you normally use. Personally, I use DVD Decrypter.
I've never used AnyDVD. Before I started reauthoring, I used DVDFab and DVDShrink for making copies of my personal DVD's, so I was already acquainted with them.