Jacobs didn't look that good to me but I only saw him once in a short notice match so maybe I'm wrong.
JuanMa and Rigondeaux. I would say Gamboa but he has shown that he has flaws (mainly he's been knocked down a few times) against opponents that weren't top level fighters. Though his physical ability may be second to none in boxing I fear he might wind up similar to Zab Judah or Berto, a guy who has all the physical tools but has something missing. I'm anxious to see how he does against Caballero, that's a fight that will show us how good he really is.