No other player in the history of rugby league had skippered his side to three successive Challenge Cups before Hanley, who had also led Wigan to wins over St Helens in 1989 and Warrington the following year.
Tries from David Myers and Frano Botica, who also kicked two goals, was enough to continue Wigan's dominance of the competition.
Any chance of a fourth straight title for Hanley as Wigan captain ended when he left for rivals Leeds just over five months later, immediately being appointed skipper of his new side.
Hanley picked up two England caps during his career and captained Great Britain for a four-year spell, appearing 36 times for them in total.
He would go on to coach Britain, St Helens and Doncaster as well as having stints coaching in rugby union.