Kelly Pavlik at 160. biggest and strongest middleweight I've ever seen. anyone who can outpower and back up strong middlweights like Taylor and Miranda with ease is one incredibly strong mofo. And I've see Urango metioned a few times here, and IMO he doesn't look like too big a jr. welterweight, just real bulky. Jr. welters like Mike Alvarado amnd Victor Ortiz are bigger. Both guys who often fight just over the 140 pound limit and blow up like 15 pounds by fight night.
Cotto is not a big welterweight. :verysad He can even shave a pound or probably more from the welterweight limit. He's certainly not bigger than welters like P. Williams or Antonio Margarito who dwarfed him when they met up in the ring.
He's still bigger than most of the people we've seen at welterweight in the past. He's 5"8 & rehydrates 13lbs. Hopkins is 6'2.5 & rehydrated 17lbs after weighing in at 170 for the Pavlik fight. He's not bigger or smaller than Mosley who refers to himself as a big welterweight. & keep in mind that Cotto was going to fight Mayorga (before Mosley did) @ 154. He's big! & the only people as big or bigger are ALL considered among the biggest welterweights currently fighting @ 147!