Well I use Canon. I have one EOS30 and one 30v, the 30v replaced my 33 which is dead.
My favourite lens is my 24mmf1.4L Sometimes it seems like it's the only lens I use.
Previous to the 30's I used a T90.
I guess I'm stuck with Canon, once you have got together a certain number of lenses, well I'll never change now.
I've always had Nikon's ... F2, F3, N70, N80, F5 - I still have all except the N70, the F3 is junk and has been a paperweight for years, the F2 has a stuck shutter and a broken meter. My primary camera is now my Toyo 45AII.