I first chose UBB and stay with it because of Infopop's technical support staff, it's large user base, Infopop's commitment to producing a quality product, the active hacking community, it's interface, standard/recognized layout, and Infopop's willingness to listen to and interact with their customers. I also feel much more secure knowing that Infopop is a "real" company with a physical address and has actual employees -- not a guy coding out of his garage, only made up of volunteers, or a group of friends spread out all over the world. I'm sick of finding a great script, installing it, becoming reliant on it, and then watch it turn into abandon-ware.
ADWOFF, UBB came first and set the standard. All the others are copies or cheap imitations.
