Fair enough. The main thing I know about Baki is that Yujiro is supposed to be ridiculously overpowered (amongst other things, he tanks a lightning bolt unscathed and stops an earthquake by punching the ground really hard), but that's in a setting where even the strongest characters are "just" really skilled martial artists. Someone like Arc who can bend the laws of nature like a pretzel would definitely cream him.
I concede the versus was ill thought-out then. I just thought it might be fun to pit two "ultimate lifeforms" from different series against each other. I take it there wouldn't be any difference if Arc was restricted to her 30% form?