I can't see anything other than a Eubank win in a good fight. Although, Benn did wobble Eubank on a few occasions. I wouldn't mind it if these guys did a trilogy regardless of the outcome, like the British Gatti vs Ward trilogy. No belts just glory.
Eubank would be foolish to concede weight again. He is clearly the better fighter but you can only put your body through that torture so many times and at his age it's a recipe for disaster.