I own both
Theyre different, and both INF capable in their own right. I love them both so very very much. (i have 3 voyagers and 2 phattys right now).
They both have full midi specs, which trumps alot of "better" vintage stuff. If only the pro1, model d and SEM had full midi specs. Anyway.....
Time for updates: pro-1 x2, Xpander, 808, mopho, SEM, PolyE, Voyager, Fr-Revo x2, XS, DRM MK3, KP3x2, mf104z x2, mf105m, mf103, space/time-factor, t3, nord g1..(plus other effects/sequencers/samplers and other s**t).