Biogen is running a head to head clinical trial against copaxone. Results due out later this year; other than that just the existing clinical trials which should not be compared head to head but probably will be.
I haven't reviewed the data lately, but from what I remember is that Copaxone isn't even superior to Avonenox or Rebif. Their advantage is their marketing.
As of right now, the orals are not showing any advantage except the convinence factor.