The Mexico international struck twice in United's 5-0 win at Bolton Wanderers.
Redknapp told the Daily Mail: "A lovely reminder to the Barclays Premier League just how good Javier Hernandez is. His first goal against Bolton came as a result of his wonderful movement - he has the best I have ever seen from a striker.
"Hernandez began his advance early, then checked back out, then went again. It bamboozled Gary Cahill, who is a very good defender. That was world class."