the shangang gold brick has a carbon fiber piece for weight savings and increased stiffness, thus it is the best
rocket brick? too many hard edges and cork drives the price up because it doesnt grow on trees
scythe nuke? too slippery and the aero under your deck doesn't even matter
random weight plate? you're just adding cast parts to your board, precision immediately goes down
scuba weight? are you TRYING to summon scuba jones?
clearly, the shangang brick is the best.