The best is what works for the snakes and is convenient to you, you are the only that can answer that question.
My BP collection is fed live, my hognoses are fed F/T
Based on my experience quite the opposite (granted I only feed a little over 200 live prey a month and only have done so for 8 years) in my experience a good feeder well cared for, well hydrated and well fed will stay in the corner of the cage often grooming itself or even falling asleep.The only downside to feeding live is that feeders can get a little bite happy