deGale looked like **** in his last fight but based on what I've seen of their career's as a whole I would favour deGale.
If De Gale has anything left, he wins a wide and easy UD. However if the version of De Gale that lost to Truax is still as good as it gets, then CEJ could stop him or at least sneak a UD.
DeGale was bad against Traux but even just a 10% improvement on that, I'd pick him against Eubank. Easy, easy work if he's even close to his best.