1) 2004 Mercian King of Mercia: My quick, nice weather custom steel bike. Chorus/Centaur components.
2) 1978 Trek TX500: My vintage rebuild ride. SunTour Cyclone
3) 1985 Trek 620: Touring bike with no two components from the same/group/manufacturer/era.
4) Late 80's Bianchi Sport single speed. Keeps from going too fast for rides with the wife.