[shrug] You want easiest? Then I guess AnyDVD is for you. Don't get me wrong, I like easy. Nevertheless, DVDDecrypter has always been able to do the job, including coping with the latest ARccOS dodges. Sometimes it's necessary to actually know what all the settings do, but that makes it interesting.
Hey presto! A new version has been released, 188.8.131.52. Many thanks to the creator of DVDDecrypter!