J-man is far stronger than kakashi but kakashi is the strongest jonin in the villageSanin are at the kage level.Kakashi couldnt beat orochimaru when he was sealing the curse on sasuke.Sharingan cant copy his hermit jutsu and the MS jutsu could be avoided as seen in the dedira fight. it would be a good match but kakashi would losebut we`d see some more of is 1000 jutsu.
with the new ms that kakashi have i think he can win
1- so far he is using the fight elements
2-have MS and its hard 2 avoid
3-know alot of jutsu
4- pretty smart
5- he is stong at taijutsu 2
6- and know many of genjutsu
^_^ i think kakashi can win.. but his weakness that he have low chakra