First thing I'll admit straight off that I've never owned a 'five star' vintage VCO synth - no Minimoogs, Omnis, CS, MS, Obie, etc. I own an Andy, a MKS-80, and have had a few 'lesser' vintage VCO synths (Moog Rogue, for instance).
I have, however, had a whole host of DCO synths - Junos, JX's, P600, Matrix 6 and 1000, MEK. I really, truly think I prefer DCO sounds, and the ease of use of a DCO synth is just icing on the cake. I like spot-on tuning, if I want phasing, etc. I'll use an outboard effect, and let's be honest - the best vintage VCO synths are quite expensive for their feature set, unless you HAVE to have that specific sound. To me 'that specific sound' tends to be awfully cliche'd in a lot of ways. My favorite synths of all tend to be the DCO- and flat-out digital ones with tons of available controls - JD800, D-50/550 with the PG-1000, MKS-70, Waldorf XT, Evolvers. IMHO, these are flexible enough to approach VCO warmth but with so much more range available for experimentation and surprises. YMMV.
Not to say I wouldn't love having a CS-80 fall into my lap or anything, and I sure love my Andy, but in a lot of ways vintage VCO seems more trouble than it's worth.
Gear List: A bunch that go 'WHHONNGG!', several that go 'tweedle tweedle' and 'thumpity', and a few that don't make any noise at all but have lots of delightful little lights on them.