Wilfred Benitez v(circa 1978?)v Floyd Matweather,presemt.who wins?

Another boyhood hero of mine wilfred,outstandig talent and I remember himbeing world champ at 17,a little older than me,what a fighter he was as good a defensive fighter as Mayweather and much mo exiteing to watch,sadly suffering from boxers dementia and liveing in PuertonRico handicapped,who do you think would win here over 15 rnds at welter??