I just finished a several week analysis on many of the backup programs and came up with a short list of Tealbackup, Resco, Backupman, and BackupbuddyVFS.
I picked Resco due to the complete list of features, solid recommendations, and cost.
My feature criteria were: ability to compress, encrypt, schedule backups, incremental updates, and backup speed. Resco won hands down on all counts.
I was coming from Backupman 1.5 and wanted to be sure if it was the right decision to go to 2.0 or go with something else. Note that the upgrade price for the Backupman 1.5 to 2.0 was hardly anything, so it was like buying a whole other program. Even though I had come to rely on the solid restores of BM, the size of the backups and the speed didn't impress me. Although BM2.0 added many features, compression was not one of them.
Your mileage may vary. As someone else said earlier, get the trials and test them out for yourself.
-S