Is there even a doubt that MO will be a first ballot Hall of Famer?
For a career, he has set the standard that all other closers will be judged against.
But if I have money riding on the games this weekend, and I do, I gotta say Pap.
His career ERA is lower than MO's, and most importantly, his playoff ERA is 0.00. In 25 innings of closing situations in the playoffs, Pap has not allowed a single run.
If your question had asked who the best closer of all time is; it's unquestionably Mariano Rivera... but the best closer today... JPap.
As of 11:30 eastern time Friday night, I guess we have our answer.