The Premier League has seen its fair share of world-class managers throughout the years and there has always been a debate about who is the best of them all.
While Ferguson helped Manchester United dominate English football for years, the likes of Mourinho put Chelsea back on the map with immediate success since taking over.
Meanwhile, Wenger revolutionised English football with his high-intensity technical football.
Pep Guardiola introduced his own unique style of attractive football as well and helped Manchester City rake in multiple trophies.
Sportbible have now put forward a poll on social media in order to gauge the fan opinion regarding who the best Premier League manager of all time is.
Unsurprisingly Manchester United legend Sir Alex Ferguson has been voted as the best of all.
The Scottish manager managed to win 13 league titles in his 19 seasons with the Old Trafford outfit and his achievements are simply unparalleled.
He managed to win two Champions League titles with the Red Devils as well.
It is impossible to ignore the contributions of Mourinho Wenger and Guardiola in the Premier League but there is no doubt that Ferguson is on another level compared to his fellow managers.
The Scottish manager remains a key figure in the club and he recently helped the Red Devils re-sign Cristiano Ronaldo.