I always use A. Only a hand full of times have I seen B used as that was commercial. All of the brokerage houses and hedge funds I have dealt with have been A. I've noticed that the union guys tend to use A for phone and B for data. And the IT guys want A. Ymmv
Ed will be known as the Tiger Woods of the integration business, followed closely with the renaming of his company to "Hotties A/V". The tag line will be "We like big racks and tight holes"...
