Does running help a lot?

Will running in intervals (slow, then fast, then slow down a bit and walk uphill, then slow down a bit, then run fast again) on the treadmill for about 20 minutes, combined with the elliptical/stairmaster/bike and some weights (about 30-40 minutes of that stuff) make me lose more weight?

Right now I generally just do an hour of those machines and weights, but no treadmill. I do it about 4-5 times a week.

Basically I want to know if running on the treadmill will make me lose more weight than sweating on the other cardio machines, since I hear running is very healthy.

Thanks.
Updates
+1 y
By the way I am not overweight I wear a size 4-6. And though my diet is not perfect, I am pretty good. I just treat myself here and there. I don't eat so many carbs and try not to eat that much cheese either.
Does running help a lot?
Post Opinion