At the end of the day Barton delivered 2 crosses in 1 game which created 2 goals, if my memomory serves me correctly Routlege has 1 assist, and that was his pass to Ben Arfa (who then fucked about for a further 5 minutes before deciding he was going to rip the everton net).
Routlege obviosly offers more of a direct threat than Barton (when he has the confidance to run at people) but thats all he brings, Barton has a much better delivery and offers much better defensive cover to our quite shambolic selection of right backs.