I try to mix it up...steel, Ti, CF.
Of course, all my bikes..."vintage" or modern are equipped with modern Campy 10 or 11s gruppos.
I also recently have ridden tubular (and also CF) wheels for the first time...I run these on my Look 585...beautiful ride, much more capable than me.
I'm now waiting for a 2nd tubular set to arrive tomorrow (oddball Spada hubs laced to Wolber Profil A's) on which I'll mount some more Vittoria Corsa CXs...nice ride. This set will be used on some of the vintage steel rigs...most likely the Chesini and the Vittorio.
-Mark in St. Louis