I tried to explain that some synth manufacturers are providing typical timbres and others are more neutral. I would say that many of us can separate DSI/Sequential tones very well from Moogs or Oberheims without much effort. All of them have their particular strengths.
Comparing the PEAK to a Prophet-6 or OB-6 is not only to compare a neutral synth engine to two very distinctve machines. Peak is also much more versatile and can reach into territory, where the others can’t follow. It’s the price for neutral or distinctive that we have to pay - but all of this has its advantages.
To go with ones heart is always good advice. As I said already … if the Oberheim sound is, what is desired, then the OB-6 is it, nothing else will replace it easily.