The current Commercial Hoover Convertibles/Guardsmans has a metal agitator with two brushes and no beater bars...They should make the wood agitator with four brushes standard equipment on these models.
Kirby with a double brush brushroll aka QuadraSweep brushroll and converted to micro filtration paper bags.
In my opinion, That setup will clean very well and leak practically no dust!
I have three Kirbys:
Kirby G3 with attachments/shampooer
Kirby Ultimate G Diamond Edition with attachments/shampooer
Kirby Sentria with attachments/shampooer
I have a carpet cleaning business. I charge $20 per room.
I use shampoo carpets with all of my Kirbys. I use Kirby Allergen Control...
The Kenmore/Bissell ProLite is no longer available. However, It is available under the Powr-Flite/CFR names.
The Riccar SupraLite/Simplicity Freedom is now available under the Hoover name.
I recommend the Riccar SupraLite/Simplicity Freedom uprights over the Oreck XL21/Oreck XL uprights.
The Riccar/Simplicity has a 5.5 amp motor in it vs a 4 amp motor in the Orecks.
The Riccar/Simplicity has a larger fan in it vs a smaller fan in the Orecks.
Consumer Reports:
Eureka Boss 2034 upright
excellent in carpet cleaning
excellent in bare floor cleaning
fair in suction
fair in noise
excellent in emissions