Open Bravo I am familar with they have an POS that I designed / speced a network for. iDempiere I believe is derived from Adempiere. OpenERP was choice made by client for sake of simplicity and what their admin was willing to take on needing only a few modules.
Haven’t taken a hard look at Sugar since SuiteCRM which works for me. Going to look at Chuck Boecking’s web site. Thanks for the info, always open to new and better.