I know, it's not fair comparing a $2,000 amp against an inexpensive plugin, but AcmeBarGig's asking for it because they're providing the DI guitar backings to their Official Plugin Demo. Plus, Henky Backer's "Saturated" is a heckuva good tune in the "Satch Boogie" vein.
It's also pretty darn impressive that One Single Guitar Track carries this entire song - no doubling, layering, etc - all props to Mr. Backer. 
HeadCase Plugin Mix: (original wet guitars)
https://soundcloud.com/dhodgson/henry-backers-saturated
Kemper Reamp Mix (reamped wet guitars)
https://soundcloud.com/dhodgson/kpareampmixsaturatedb [1/11 Edit: with even more punch, ha!]
...in case you're wondering, I'm using the factory "MS171-00" rig with a bit of plugin ambience (since the original demo guitar's fairly swimming in it. You can check out the YouTube plugin demo here: http://www.youtube.com/watch?v=7F1K8EJoWC4)
-djh