Excluding preliminary matches, the Spanish manager can boast a record of over 58% of matches won in European competition with the Anfield outfit and his former club Valencia - 39 won out of 67 played so far.
That compares well with Manchester United manager Sir Alex Ferguson, whose winning percentage in 29 years of European football is just over 50% (93 won out of 185 played prior to last night's quarter-final first leg with Roma).
And if Jose Mourinho - played 60, won 30 ahead of the Valencia tie - is the special one, then Liverpool have an extraordinary manager on their hands.
One of the most impressive aspects of Benitez's European record is how his teams have fared away from home. In 33 matches he has won 15 and drawn 11, losing just seven.
So what makes Benitez so successful when it comes to the European game?
Put simply, he is a football anorak who knows the quirks and foibles of his team - and those of the opposition - inside out.
This is the man who spent part of his honeymoon watching AC Milan train, stored data on a laptop computer about his charges in the Real Madrid youth setup, and even banned his Valencia players from eating paella - the local speciality -because it did not fit within his nutritional framework.
Mista, who scored Valencia's second and decisive goal against Marseille as Benitez led them to UEFA Cup glory three years ago, summed it up.
"Benitez prepares matches like no one else. Sometimes it would shock you just how often the opposition did precisely what he said they would do."
Liverpool and their new American owners are now reaping the benefits of this attention to detail.