forged crank vs nodular crank block

just wondering if any body ha experience with cast vs the later newer blocks 76 and up
if I was going to have a spare and start building a engine . wish one you would chose
like parts wise , yes the forged crank is stronger , but the later nodular one is lighter
and easier to find bearings and parts. I rebuilt my engine it s great has plenty of power
just should I keep looking for a spare , I have the 67 block with a 73 crank with the bigger
end for later torque