From the perspectives of a PVE and non-casher player, 

a Hercules’s Might armor set is better since i get +200 Weight,

But too many players keeps saying Boss Armours are better, but a quick

look into the marketplace shows how expensive it is, is it really worth it or is it just for PVP?

I am expecting to PEN my Hercules’s Might armor set so if anyone would explain to me why i shouldn't,

I am interested to hear about it before i spent my fortune on it.