Slayer vs Psychic

[white avenger]

I was just watching "Serenity" this afternoon, and I got to thinking : since Whedon has turned River into a "weapon" and she's suddenly such a bad ass fighter, who do you think would win in a toe-to-toe, stand up no holds barred fight, Buffy or River? Granted, Buffy has the advantage in experience, and probably strength (though maybe not, that suspending yourself from the ceiling takes a lot of muscle, plus quite a bit of flexibility, plus taking out all those Reavers single handedly...), but River, being psychic, could know every move Buffy was going to attempt before she made it.

Whichever way it went, it would be a heckuva match.