Hazard has scored nine goals in the Premier League for Chelsea this season while picking up three assists.
The Belgium international has been reinvigorated under Antonio Conte after scoring just four league goals last season.
The 26-year-old is now showing why he was voted the 2015 PFA Players' Player of the Year and is on course to win his second Premier League trophy.
Eden Hazard has got nine goals and three assists for Chelsea this season
Danny Mills believes Hazard is 'unstoppable' on his day
And when Mills was asked where Hazard ranks amongst the best ever players in the Premier League, he admits it's hard to argue against him.
"Take out last season, he's certainly up there," Mills told Sky Sports.
"His ability is second to none, fantastic to watch, brilliant dribbler, assists, scores goals and a great penalty taker.
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“He's an instinctive player, he doesn't know what he's going to do when he goes up to defenders, it just happens.
"He sees it in the moment and just reacts to it. There is no certain plan and that's what makes him difficult to stop.
“He's a magnificent talent and when you get him working hard he's almost unstoppable.”