What really brought me back into knives about a year and a half ago were SAKs (even though the first two that I had bought in year were a Spyderco Dragonfly and a Charge TTi). Mainly Vic, but I have about half a dozen Wengers as well.
I have several of other brands. Four each Buck and Spyderco, two Case, two RAT Cutlery, then a lot of miscellaneous single pieces. I don't really have any particular brand loyalty, but I definitely have a soft spot for Spyderco, Case, Vic/Wenger (since the former owns the latter now), and especially Buck. I also really like my GEC, and can see myself purchasing another one or two when money becomes looser. I'm already creating a wishlist of a Queen stockman, a RAT Izula, maybe a Buck 301 or 303 to compare to my 371, a Spyderco UKPK, and probably some others.