By eye, what struck you as the biggest disparity in size you've ever seen in a big fight below heavyweight? For me, two come to mind - Harrison-McCullough & Margarito-Pac
Robinson / LaMotta too Robinson was a welterweight.. LaMotta was a BIG middleweight (by the standards of the era, at least).
Fuck yeah, Duran Barkley. A podgy little 5'7 lightweight against a solid 6'1 middleweight :: Disagree about Robinson and LaMotta though. Looked a similar size to me, in the fights I've seen. I think Ray grew into a decent sized middle. He had decent height and reach, and looked pretty much like an average size middle, especially for the era.
Actually, I might be confused.. it may have been SRL who weighed in with silver dollars in his pockets (for the Lalonde fight maybe?), not SRR.