Benitez has allowed 1 ER this far with an ERA of .39 and 15 saves (right). In comparison, Gagne has 10 saves with an ERA of 1.59.
I think he has 16 saves, but I could be wrong, but to get to your question, Mando could very well be the best closer in the MLB, if you don't count Gagne, but I haven't seen every single closer. :mischief2 :mischief2 But he has to be in the top 5 or 3.