As far as I can tell the lone difference is Drive Backup Personal's ability to perform incremental backups, which they refer to as the Differential Backup. It enables you to only backup changes to the system since the last full backup instead of forcing you to create yet another full backup, taking up more space. If you feel that feature is worth an extra $10 then get Drive Backup Personal; otherwise, pick up a copy of Exact Image.
Hope this helps,
John
What is diff between Exact Image (Paragon) and Drive Backup Personal? Their website not too clear. I'm seeking a program that will restore my present configuation (registry, programs, etc.) exactly. Personal files I can backup using any number of other programs on a schedule. Replicating partitions is also important. Thanks.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic