Early profiles show KOH Robots are the most popular strategy. But, the more recent profiles have been predominantly stack related. See:
http://www.soap108.com/2003/charts/index.cfm
Haven't submitted a profile yet? What's holding you back? Go for it! Let the world know about your robot!
Register:
http://www.soap108.com/userregistration.cfm
Login:
http://www.soap108.com/login.cfm
Submit a SRP:
http://www.soap108.com/robot_profile.cfm
Regards,
SOAP Team