In reply to: Not directly responsive but here are his bbref comps thru 25 posted by bizdomer09
I should have linked it. Included this time.
Every player with enough games has a list of guys on their bbref page whose cumulative stats are the most similar statistically at each age in their career. They start with 1000 (the max possible) and then count down from there based on difference in counting stats like ABs, HRs, BBs, etc. So by this measure, Harper's stats are the most similar of any player ever at age 25 to Soto. There's nothing remotely perfect about it, just makes for conversation. I don't think they account for fielding.
If you're a supreme talent like Soto there aren't going to be too many guys that match up with you with similarity scores in the 900s. For run-of-the-mill players with 1000s of comparable players in baseball history to choose from, you'll see more guys matched up closer to 1000.
Just to be clear, it’s not an indicator of superiority, but rather of similarity to another player. For example, some guy out there (Felix Martinez) has a similarity score of 970 relative to Buddy Biancalana. That basically means his hitting stats suck in a very similar way to Biancalana’s.
For Soto, we know he’s no Buddy Biancalana, as indicated by the list I shared of the 10 guys (all HOF or on their way) with highest similarity scores relative to Soto through age 25.
Some explaining helps if you're seeing it the first time.