Such an interesting question, and probably helpful to DSI in their development of future products.
I first walked into a local synth store about 10 years ago with the intention of buying a moog voyager. But this place had EVERYTHING so I tried it all,
I hated the Roland SH101, it sounded like a mosquito.
I tried the DSI mophos, but they felt cold and brassy
I tried the moog voyager and found it had no sequencer or arp. (Nothing did back then!)
I bought the little Phatty stage 2. I felt it was meaty and warm. I would not buy the boxed red back one, only the store display one which sounded better to me.
The staff thought I was crazy. But atleast I had my arpeggiator!
Over the years this store has let me try things side by side, and I've ended up not buying a lot of things I was sure I'd want.
Then the prophet 6 came along. I loved Daves presentation at NAMM, the layout made sense (much better than the little Phatty) and I loved that it had slop, sequencer, arp, the lot!
I tried the prophet 5 in store and was duly impressed, this was the first DSI that sounded analogue to my ears. When I compared the prophet 6 I was impressed.
Once I got the money together I had the choice or prophet 6 over ob-6.
In the end I went with the more familiar sounds of the prophet 6
These in the end were the reasons:
- analogue pathways
- arpeggiator
- sequencer
- separate resonant hi and low pass filters
- digital effects if needed
- great layout of the interface
- no menu diving
- fantastic sound design in the patches
That's why I finally went DSI, also my dad died so I had the money to consider it for the first time in a long time.