Also remember that Boba was knocked into the Sarlaac pit by a blind guy with a stick. 😆 Nevertheless, my vote still goes to Boba, ARC pointed out that he appeared to have better equipment. Also, regardless of the movies, I think Boba had more time and therefore experience in his line of work. Also, yes, he did stand up to vader, and almost kill Han Solo on several occasions. 😉
I think that that would be awesome it they fought. If it were based purely on skill: Jango. Weaponry: Boba. But honestyly emotions would be a great factor and in the nd Jango would never kill his own son. Boba would unfortunately smear his father's blood all over the snow covered planet and need years of therapy afterwards.