Gary please elaborate further...
"NO COMPARISON" is a bit strong.
bottom line is what it sounds like when you
play whatever brand to make music Yamaha, KORG, Ketron, etc, etc,. You gotta hear it to no matter what to emphasize any statement.
That is something that many never do, why I don't know.
But it definitely settles many an argument for sure IMO.
State your opinion, play a sample of what your talking about
(without all the excuses) and it's done,.. wouldn't you agree?

Carry on