Ehh, actually what he said was, he felt Pac was wrong for repeatedly attacking a man who obviously didn't want it...and that Biggie probably could've come back back wit some gangsta shit, which doesn't necessarily equate to ripping someone apart.
Now, as far as technical ability with them on the same track, Big may have had the slight advantage. But let's not forget the essence of a battle. When it all boils down to it, it's not really HOW you say it but instead WHAT you say, and how much truth is behind it. You could spit the illest "style" anyone has ever heard, but if you ain't sayin nothin about yo opponent, or it's a bunch of make believe or speculation, does it really count? But then your opponent speaks, maybe in a more simplistic style, but sayin some shit that's more than likely true, or some shit that at least the 2 of ya'll know is true, then that's the nail in the coffin.
Big couldn't respond because he had nothing against Pac, outside of punchlines and slick shit, if he had anything else to respond with he would have.