Chavez Jnr has a record of something like 39-0, records don't make you a good boxer. -Just ask the Calzaghe haters. That must mean that Calzaghe is one of the greatest boxers ever? By his record, probably in the top 3. He was good, but not that good.(and I'm a big fan of his)

For me it's all about the people you beat, I'd rate a boxer far higher if he fought only the very best and lost a couple of those, compared to a boxer who fights unknowns and stays undefeated.