Both are exclusively cardio machines and will do little or nothing to build strength and increase musculature. Cardio is a component of a fitness programme however it is not the best one to use for fat loss since it will burn muscle as well as fat if used exclusively. The differences between the two machines are more in the mechanics of the action and not the benefit of one over the other as a cardio workout.
It is called WORK-ing out for a reason.
I said getting fit was simple, I did not say it was easy.
Cardio burns calories, strength work burns fat.
Eat well to lose weight, exercise to get fit
You can not build a six pack using twelve packs
Often when we seek a magic bullet for fitness we end up shooting ourselves in the foot.
"I think calories are little germs in food that all moms are afraid of" Dennis the Menace