It is worth noting, of course Ruth had other advantages over Aaron as well.
But these breakdowns happen. I didn’t invent any of them (to my knowledge).
I do think in baseball it’s probably the worst sport to take some stats a player got on one team and assume they translate to other teams (arguments accepted for football, especially running backs). I mean, we haven’t even gotten the differences in parks and fields and into Alonso’s super-hard line drive home runs in Camden that, being lower than 37 feet off the ground at the 310 foot marker, might just be wall ball singles at Fenway. Now Alonso does hit with power to all fields, and the RF wall at Fenway doesn’t stop many home runs. So there is debate.
I don’t considered missing out on Alonso to be as big as not getting Isaac Paredes, who was just built for Fenway. And unlike other Fenway-potential monsters (notably Junior Caminero and Miguel Vargas), Paredes was reportedly somewhat available last off-season.
Weirdly, Marcus Semien seems like a good Fenway fit, but it is so understandable to pass on him at that age and contract…