Now that pictures of the Gen-6 Camaro are available, the only Ford advantage I envision stock-for-stock with Gen-6 Mustang is the EB 4 vs. current T-4 GM ratings (and that, of course, is "subject to change without notice").
RWHP from all versions of all competitors will be "interesting"...
(Camaro Gen-6 here:
http://www.camaro5.com/forums/showthread.php?t=369061 )