Optimal Workout for Original Just Dance

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Hey guys. I am so happy I found this group. I rented Just Dance 2014 in January, loved it, then bought the original. I didn't like it as well but now I also really like that one. For those of you who use the original JD, any suggestions for an optimal workout? I was doing almost every one for a workout and burning 400-500 calories. Now I do it for 30-40 minutes and am only burning 300 according to my HRM.

Any suggestions on which dances to do to burn the most calories? The only one I absolutely won't do is Bebe because it annoys me!

I'm also trying to vary my weekly workouts to see if that helps. I figure my body has gotten too used to Just Dance after doing it nearly every day! So I am going to alternate between these activities: Walking around my apartment complex, Just Dance, Wii Fit, and a cardio dancing video. Think that may help, too?