Louis always had that lean athletic physique that you just knew could generate some big power. Kind of reminds of Jack Johnson in the shoulder area.
Plenty of guys had an impressive physique. Had the power that was expected to match. Not everyone does.
Freakish physique? He looks smaller than some CWs today, just compare him with someone like Gassiev or Kudryashov.
Murats nobody to scoff at. But his physique is a class below Louis https://www.boxing247.com/wp-conten...ndy-Samuelson-_-Premier-Boxing-Champions1.jpg His shoulder, neck, biceps are not as defined and freakish looking than Louis'.
Maybe not as chiseled as Louis he looks bigger to me... Anyway to answer your question I'd compare Louis' physique to Dempsey's http://img.uodoo.com/s/mediana/s/2016/9/a36343a48f3dc0110d49588446b3468bx480x716x30.jpeg narrow lats, small chest but large deltoids, traps and long arms
He has an impressive physique, but the proportions are not the same. Louis arms neck and shoulders look awkwardly large compared to the rest of his body.