I now use an Electrolux AP280 (just got it from Kijiji Calgary). I used to use a JohnnyVac Jazz canister.
My mom (in Fort Wayne, IN) uses a Dyson DC25 Ball Animal.
Back in my childhood, our daily driver was a Kirby Tradition. We also had a Sears-Kenmore DynoMite canister vac for hard floors upstairs and down.