well according to rolling stone neil peart is the best drummer in the world. and i dont disagree with that
"Best" comes down to a matter of opinion really. It's like the DJ Mag Top 100 DJ list. Just because Armin van Buuren is voted number 1 doesn't mean he is the best.
Anyway, Mike Mangini has quite a few world records under his belt..
Bare Hands (no sticks) in 60 seconds, which he earned by executing 1,138 single stroke notes in 2002, until Glen Caruba broke it with 1,140 notes in 2006.
Matched Grip single strokes in 60 seconds, executing 1,247 notes at the 2005 Summer NAMM in Indianapolis, IN. Mike already was the 1st person in history to break 1,200 notes when he played 1,203 single notes at the 2005 Winter NAMM Session.
Traditional Grip which he earned by executing 1,126 single strokes in 60 seconds in 2003, stood for five years before falling to Matt Smith (1,132) in 2008.
Single Stroke Foot record playing 13,222 hits in 15 minutes and 4,555 hits in five minutes, records that stood for two years before falling to Mike "Machine" Mallais (13,309/4,595) in 2007.
But, like I said... it's opinion so lets leave it at that