The only fight that would get close is the hypothetical one of Hatton v Calzaghe. Hatton v Witter wouldn't be that big because Witter is not a known name, just like Froch. To be honest, I can't see any so called 'Super Fight' of any magnitude happening domestically for a long time, mainly because boxing as a whole is not anywhere near as popular as it once was, and probably never will be again. And we have Sky to thank for that.