Going with Vargas. Curry was prime at WW (His frapped up decision to abandon the local Texas Boxing Management that made him a World Champ cost DCurry big time.)
I think a prime Curry (who was much harder to hit than the Curry we saw later) would be too sharp for Vargas and would win on points or a late stoppage. Vargas would be physically stronger but Curry was a more dangerous puncher and the better boxer.
Vargas a little to much for Curry .Not a one sided beating ,but Curry would be hurt and dropped in the 9 th .
If prime Curry had moved up he wouldn't be weakened by weight problems and would have been even better. Vargas would try to bully Curry early but Curry superior speed and skills would be the difference. Curry on pts.
If Oscar stopped Vargas, prime Donald does too, as long as he moves up in weight before he leaves it all in the ring with Honeyghan. Not saying Don was better just that he was naturally bigger than de la Hoya
Vargas was way too easy to hit. Some head movement would help and do wonders. But standing in front of Curry with minimal defense and zero head movement better translate to him getting in some headbutts that Curry was prone to. I think that's his best way to win--bust him up with a headbutt and Donald backs off enough for Fernando to take over. But Curry was no monster at 154 and I still cannot believe how outclassed he was against Jacquot. Now there's a name you don't hear mentioned--Rene Jacquot. Let alone the stigma of having Rene win the battle a to z.
Donald Curry was one of the original "pound for pound" sensations that the media has loved for decades now. I think fans that weren't around during his original surge to the top of boxing might underrate his actual ability... Watching tape of his bouts I'm almost always blown away by his performance and abilities, much the same way I feel when I watch Salvador Sanchez bouts. You get the feeling that you're watching something really special, and in both fighters cases they really were working a special kind of magic rarely seen in the modern boxing age.
People were talking about Curry moving up and potentially dethroning Hagler, weren't they? Pretty wild when you think about how things panned out in reality.
If we are talking the prime focused Curry then I will go with the Lonestar Cobra caveat that it we are talking the real Curry that moved up post Honeyghan then its a crap shoot Curry was struggling with IMO burnout in the sport affecting his focus he looked great against McCallum until he pulled back with his hand down again he lost focus for a second and boom....one thing about the prime Curry was he was a laser focused assassin never taking his eyes off the opponent and concentrated on the fight no playing no joking no attention deficit but during the Honeyghan fight he wasn't there and was hot and cold after that
The difference being, Sanchez had the intangibles to back up his talent and skills... along with an iron chin. Curry had all the talent in the world, but lacked the intangibles. But I dunno if his lack of intangibles matter here, as his talent alone would probably be enough to beat Vargas. But a Leonard or Duran would have brutally exposed his lack of intangibles.