Ooh fun thread..
Legs: most fun? Seriously?}( There isn't one, but I do enjoy the 4DS leg workout alot-even the leg presses aren't that bad cause the workout is so short and effective.
Chest: Chest workouts bore me to tears-I have very large ta-ta's so have always felt working chest to be pointless, although I do understand chest exercises work other muscle groups too. Probably the chest section in ME, I like the ball squeezes.
Triceps: Gotta go with gym styles
Biceps: hate all bicep workouts, wish the muscle did not exist
Back: Again, the 4DS Back workout, Cathe includes the supermans for the lower back which can get neglected in alot of other workouts.
Shoulders: CTX shoulders or the 4DS shoulder workout
Calves: Legs and Glutes workout-the calf part of it!
Glutes: PLB for the floorwork-killer and fun
Abs: Kick, Punch and Crunch or Muscle Max
Overall, I think that the 4DS weight workouts are Cathe's best. I love to hit a muscle hard and intense, and then move on with my day! The gym style workouts are great, but the leg one seems to go on forever which tries my patience a bit.