A:Answer I own several of both: the latest Dyson Ball Multi Floor Bagless upright and the V8 Absolute. Each has benefits. We also recently bought a couple Robotic Vacuums. While they do not pick up to the level of either the Big Ball or the V8, we run the robots 3 days a week, and touch up with the V8. Any spills are best handled by the V8. The V8 Absolute is killer on hardwood floors with the smooth Motorhead.
We use the Big Ball about once a month now; it is simply not needed and the cord is a real pain, when the V8 is so light & cordless.
I recommend the V8, without question.