Electrolux!
Sears has always been a good choice.Filter Queen is QUALITY but as above messy to empty.Others above can be great but expensive and not as easy for service and parts.As the old slogan went-'Electrolux is better.Better buy Electrolx.'!!All Elux have the 4 ply self sealing bag.Pet hair would only be a concern until you see how much will go in the bag before losing suction.Then open door,take out bag,drop in new bag,continue cleaning.Takes longer to type this than to change bag!As above Elux atts are better and bristles replacable after hard use.The deluxe(Super J,Olympia,etc)give you chrome trim,automatic door and cordwinder.If you want a simpler,lighter vac the Model L is a great choice especially if floors are all hard surface.Elux can be easily found(flea mkt,thrift store vac store,EBay,etc)at good price and oftem the worst problem is an easily replacable worn hose.