Muscle Endurance is my favorite because there is a ton of leg presses, then squats and lunges, so my lower body feels totally worked out (as does my upper body)
Muscle Max is my second favorite. I, too, sometimes think it doesn't work my legs enough but quickly eat my works during the squats, static lunges and PLIE SQUATS (these are killer in MM)!!!
I hear over and over that the stuff from the Body Blast series is a bit too easy, so unless you are a beginner (if you can do Power Hour, your not a beginner), then I do not recommend them.
In short, you cannot go wrong with Muscle Max or Muscle Endurance for total body.