Don't think Moyes would been good for Ross either - Stones could have gone either way imo perhaps make him a better defender but beat the runs forward (which I happen to love) out of him.He's gotten the best out of Rom which is more important. Moyes would have drained the life out of him in abar half a season.
Ross is definitely more important to us that Kev, irrespective of how much I like him when he isn't acting up.