It's not even close if you really think about it. Binary posesses the powers of a white hole, aka a collapsed star. Silver Surfer controls the Power Cosmic. He could create and destroy Binary's power source at will. He can control energy and matter, and all she truly has are energy derived abilities from a spatial anomoly.
Surfer would beat her. If he wasn't such a pacifist, it wouldn't even be a close fight.
Surfer's like a cosmic powered Ghandi.
If he had an edge, there'd be a lot of murked 'super' beings.
But anyway, if any of you get a chance, read the Surfer story "The Enslavers", it's a good read.
Binary is one of those (underwritten) characters you don't see that much in comics.
But she's very powerful ! I don't see her defeating SS though, but it will be close.
__________________ The whole problem with the world is that fools and fanatics are always so certain of themselves, but wiser people so full of doubts.