Well Medieval Bob pretty much just said everything that needed to be said: Jinx is a great deal faster than Auron and would have him confused out of his mind. Jinx would probably just zip around Auron to toy with him and then when Auron was dizzy or confused, knock him into next year... Jinx would certainly win.
And for those who don't know the characters, Titus noted that I should post the pictures from my picture thread so... here you are:
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