My #1 is Ka-Bar. Six total with five of those being Beckers. I also used to have a black 7" fighting/utility and a warthog folder. I just ordered a Heavy Warthog and I really would like a BK16. And it looks like next year sometime my holy grail is coming back, the BK10.
My second place is a tie between Kershaw, spyderco, and Leatherman with five each...for now. I'm drooling over several Kershaw/ZT and spydies at the moment.