I would go with the black one in front, could be the newest of the lot. That's a two-speed Ultra, low for bare floors, high for carpet. If you go to see them in person, check the brushroll, inside of the cloth bag, and cord for any issues. Orecks have always had a niche for people who appreciate a light and easy vac to use. Deep cleaners they're not, but do clean well and groom carpet very nicely. The previous poster is obviously an opinionated basher, I am not. I collect and use all brands, all of them have their fine points. I do draw the line at anything that doesn't use a bag, except Filter Queen/Rainbow.