Carbon Copy Cloner 4 Available Link
Carbon Copy 4 looks like a very worthy upgrade, especially if you need it on Yosemite.
I like the new scheduler interface and the simple setup seems approachable. I’m sticking with SuperDuper because it works and there’s no reason for me to break something that works. But if you want bootable backups and have $40 CCC should be a good option. I like the icon too.