What makes us Red Hat
Red Hat was primary reason it took me a lot longer to adopt Linux than it should have. Headbanging experiences with dependency hell and things not working as expected left me extremely discouraged.  It wasn't until I dabbled a little with Solaris 7 and finally found Slackware that I realized that Linux could "just work". IMO Red Hat's success was primarily based on the critical mass of support behind it, not because it was the best distribution.