PocketWizard triggering systems are used by more pros then all other radio triggers combined (at least by our research).  Here is a list of professional photographers featured on PocketWizard.com, both currently and in the past.

FRIENDS OF POCKETWIZARD
The following is a list of photographers who are avid PocketWizard users.  If you use PocketWizards on a regular basis and would like to belisted here, please contact us and we'll list your name below as well as add a link to your website.