The likes of Chris Gayle, Ramnaresh Sarwan & Brendan Nash aren't in the same class as any Australian batsman in Test Cricket. Nash couldn't even make the Queensland side, ffs, and you are trying to justify Broad's International success against him?
Hughes averages over 60, Katich 45, Ponting 56, Hussey 54, Clarke 48 and North 52.. if you honestly think that success against the West Indies means anything when coming up against opposition like Australia, India, South Africa, Sri Lanka and so on, then you have lost your mind.