What Fighters Would Have the Best Odds-& What Are They-Against Their Best Competition?

For this one, do as many divisions as you like.
But make sure they are fight day compatible weights to make it fair.
Take the best fighters & say who would have the best odds against the guy who gives them the toughest fight.

Theoretically it is not always the best fighter-maybe he has 1 or 2 guys who would give him disproportionate trouble, while being best & most consistent against all comers.
So an example from a recent thread might be at WW you pick Robinson as having at worst 65-35 odds in favor of beating the man who gives him the most trouble.
But maybe you are of the school that few if any have better than a 40% shot against their biggest stylistic nightmare.

WHO at what weight has what kind of odds against their worst potential match=up?
Extra credit if you can say who that is!