[CentOS] Repo order - priority plugins

Guys, what is the best way of arranging the repos with regards to their priority? Any ideas, especially for all non base ones?

/etc/yum.repos.d/CentOS-Base.repo - priority = 1, 2

/etc/yum.repos.d/atrpms.repo

/etc/yum.repos.d/epel.repo

/etc/yum.repos.d/kbs-extras.repo
/etc/yum.repos.d/kbs-misc.repo

/etc/yum.repos.d/rpmforge.repo


How would we position dags repo?