Definitely StepWorks, one of Cathe's best step w/o's IMHO I really enjoy PowerMax as well and don't do StepFit very often. As it happens I did StepFit last week and was surprised at what a good w/o I got. StepFit can easily be extended, I just added power to the 'cool down' and kept my heart rate up. I have to admit the 'Macarena arms' thing is getting a little dated, I guess the upside is that in a few years it will be cool again as it will be 'retro' or 'vintage' :+