If Bradford is healthy he's better than Foles. There I said it. Obviously the if is a big if though. I think it's time to accept that Foles had no value around the league. Foles is going to struggle big time in St. Louis with that line they have.
IMO it's a no brainer that Bradford is better than Foles if healthy. The last season Bradford played he was behind a poor offense line. His RB gave him 3.9 yards a carry. His #1 WR was a man whose career high in catches is 38 for 399 yards. Despite this terrible set up to his credit Bradford (who only played 7 games) was still on pace to finish the season with 32 TD's and 9 INT's.
Though of course as of now we can't saw his weapons in the Eagles offense are much better xD
But his abilities easily exceed Foles and to his credit he is supposed to be good at reading defenses during the play where as Foles seemed like he would just wing it to a predetermined place even if it was triple coverage.
I am not saying Bradford will reclaim his draft glory and be a star but I think he will manage better than Foles.