I know a strength training coach who prefers performing the bench press with dumbbells instead of the barbell bench press. He likes the fuller range of motion that the dumbbell exercise provides. He also likes to use the dumbbells for other exercises like the military press, curls, etc. for the same reason. On many strength training exercises that are done on your feet, he instructs his athletes to raise on their toes as they are performing the lift since he believes that helps their coordination.