Ok, I guess you get the picture, but let's put it this way. Which pair of siblings has a very wide talent gap. Let's put Pacquiao brothers out of the question as it was as obvious as hell. I'll start with the Cotto's. It looks like Jose Miguel will never win any title until he retires while Miguel Angel is already a multiple champion.
That totally slipped my mind :good Zab Judah also has a brother or more in the pro game if I remember rightly.
Some might say the Canizales' but even though Orlando notched a record for bantamweight title defenses his competition was awful quite frankly and I have to think Gaby would have demolished Seabrooks and pretty much every one else. However I do think Orlando would have beaten Jeff Chandler.
The Curry brothers. Clearly Donald was world's better but its worth noting that Bruce gave Wilfred Benitez, who was comparably talented to Donald absolute hell and plenty think Bruce was blatantly robbed in that fight.
I'm pretty sure there's a Wikipedia page I stumbled across a couple of weeks back of significant boxing families. Cba to go back and look but there were a **** load of families let me tell you.