MilkSpiller22
Gorilla
David Ortiz MIGHT be the best postseason player ever. He's definitely on the short list. He's won 3 titles and an ALCS MVP & World Series MVP along the way. Oh, by the way, he's hit 500+ HR's and finished in the top 5 for MVP voting 5 times. I'm not sure if the PED suspicions keep him out, but at least he was never suspended for it the way Arod was.
WC era players have a much larger sample size of playoff games... But it looks like you are just looking at Ortiz' WS numbers... I will give you he had amazing WS numbers, but his overall playoff numbers are pretty close to his career averages...
I would certainly not call him the best post season player of all time though...