It's a close call between Vax and Bissell. My money's on the Bissell because it beat 3 other machines in a cleaning race on QVC. They poured Coke, coffee, ketchup, raw eggs, pure orange, sugar 'n all sorts on the cream carpet and the Bissell cleaned it all up in one pass while the people working the other machines looked confused and disappointed because their machines just weren't as good.
Alan