Hello - Currently I have a Tempest and Analog Four MKI. I use the Tempest as the "rhythm" section - sequenced drums, played "bass" parts and some mono synth bits. Then the Analog Four is sort of like... my right hand live playing. I also then sing and sometimes use the main midi controller to run some "played" harmonies through a TC Helicon Quintet.
My music style is sort of in the vein of James Blake, Radiohead, Francis and the Lights, Bon Iver... etc.
I'm looking to replace the Analog Four with a Prophet of some sort.
My initial thought was a Rev2. In that case, the tempest would be more focused on drums and small mono bits, and the core synth work would come usually from a split directly on the prophet. I became a little concerned with this though because the Rev2 is so similar sonically to the tempest (same filter, similar raw tonal possibilities). I also don't love the single effect per layer or lack of a per voice high pass filter.
This led me to the Prophet 6 / OB 6, which have very different and richer tonal possibilities. For my usage, I think I'd just get the desktop and essentially use it like i currently use the analog four. A complement to the Tempest "Rhythm" section duties.
While one answer is "just buy them all", I'm attempting to be very thoughtful about my setup. It is ultimately just a hobby for me, and my focus is on minimal programming/sequencing while playing/writing/singing the majority of things "live".
Any thoughts on which direction may be best?