Step Blast (Total 55 min)
Warm up = 6 min
Combo 1 = 9 min
Combo 2 = 11 min
Combo 3 = 10 min
Challenge = 13 min
Stretch = 5 min
Rhythmic Step (Total 60 min)
Warm up = 10 min
Combo 1 = 11 min
Combo 2 = 14 min
Combo 3 = 12 min
Challenge = 9 min
Stretch = 4 min
In my opinion, the choreography is trickier in SB than RS. RS's comobs are broken down a bit more and most of the moves are right on the step wheras SB features lots of twisting and moves where your back is facing the TV. The challenge is tougher in SB because of the 'intesity bursts' offered. That said, I think RS is a tougher workout overall. It is quite long (46 min not including warm up) and the combos themselves, imho, are more intense (particularly section 2). I have done SB on a 10" step and though it was tough, it was doable. I tried RS on a 10" step and felt too winded and brought it back down to 8". For 'fun' factor - they are close, but I think RS wins slightly. I prefer instrumental music. (Although - Step Blast features TWO Prince songs - so I think that's enough to merit it's purchase!)