10.5:1? why bother going aftermarket for that. you can get some JDM GSR pistons and be right there, or some itr pistsons and go to 11.3 ish...
either way, if you're going all motor, i'd suggest the gsr head.
if you're going turbo/sc/nitrous, go with the b16.
it really doesn't matter too much. the gains/losses between the two are neglicable, and once you port them, and shroud the chambers out, they are equally capable of hitting big figured.