I really love this set, great premixes and you can make this as tough as you want. The blasts and the muscle melt downs make it even more versatile. And to think I nearly missed out because it was billed as intermediate, tsk.
I believe I do Low Impact Sweat slightly more because of the music, but its a tie between all of the rest (which isn't helpful to you) so I will say Low Impact Sweat if I was to get another one.