Cardio is definately more beneficial than colorie restriciton. When cutting down your calories you're slowing down your metabolism more and more, and finally you get into the muscle wasting mode being too low on calories.
Keeping the calories high and getting into a deficit by doing cardio is definately the better way as you keep your metabolic rate high.
But honestly, having a regular job, how should 2 cardio sessions a day be practicable...?
