I really should have chosen “other,” but of the options, I’d probably choose the Lupe, if they still made it. (Since I know the initial post was kind of referring to cordless vacuums.) So I chose that.
I don’t think I’d ever get a Dyson Piston. The Kirby is a fantastic cleaner, but just too cumbersome for my liking. I like being able to quickly detach the floor nozzle to get in crevices. The Samsungs are nice, but I thought that the Lupe had better repairability and parts availability while it was around, which was is big deal for me.
However, out of all vacuums, without a doubt, I would go with a good central vacuum.
If I were to choose another cordless vacuum, I’m not sure. There are pros and cons to all of them.
Of course, that’s just my personal opinion though.