There are so many Dypsis collectors that were not even named in this poll.
From my travels I would separate the collectors in four distinct locations as follows:
1. Queensland-Australia where you have Arden Dearden, Clayton York ,Bill Beatie and others.
2. Hawaii-USA where you have Jeff Marcus, Bo Lundquist, Jerry Andersen, Dean Ouer and others
3. California-USA where you have Marty Darian, Ron Lawyer, Len Geiger, Gary Levine, Greg Hamman, Bob Deyoung, Rick Cerino,Bill Sanford, myself and countless others
4. Florida-USA where you have Jeff Searle, Peter Balasky and several others
All that said I would say Jeff Marcus is the man and he continues to constantly add to his collection through collecting in habitat as well as describing new cultivated species.
The best part is this fraternity of collectors largely shares information and seeds and all of us will see our collections continue to expand.