When I made the original post, I kind of suspected that there might be a split on this. By the way I believe that the VT100 mkII was around for a lot longer than 16 months. I'll probably keep my Ref2 preamp and VT200 amp for now. I'll have to do a really long listening session to get a handle on which "sound" I like better. Thanks for all the good feedback.
Audio Research comparison
I'd still like to get an un-biased comparison of the old Audio Research Power Amps: VT100 MkII, VT200, REF300 and the newer solid state input versions. I have heard opinions, but they have all been self serving. So I'd like to hear from someone who has really compared the two designs. Also I'm interested in the comparison of the new pre-amp designs with the older ones LS-25 Ref2 with the MkIIs.