Piston Choice on 318

alright so I want to bore my 318 .40 over and im most likely gonna be running stock rods and crank unless i run across something but anyways i'm not sure what brand of pistons I should use.
maybe go Speed-Pro? Keith Black?

I'm thinking Hypereutectic either way but im pretty green on the whole subject so I really need some help here

oh, and why are there a couple sets of hypereutectic that cost as much as forged... :-? that didnt make any sense to me