Wlad has jab that in some occasions is reminicent of jab by prime Ali

Mayweather does not have great jab, but he has very good versatile left hand, it is not the same

Rigo, Ward they have good jabs due to diligence , discipline , but there is nothing new that they added, so by no means they have "great jabs"

You want great jabs? Study Ali, SRR, Holmes, Liston, ...