Road Wheels & Road Wheel Recommendations?

i) 24h 2x rear, better bracing angles
ii) 28h 2x rear, more spokes

Assuming all else the same, which will resist twisting forces better, or is it inconsequential?

(maybe this should be in the wheelbuilding thread, but I think that should just be merged into this thread anyway; meh)

You'd need to resolve the forces to find the vector of this twisting force you speck of (in the plane of the wheel?).
You then need to do the same for the spoke tensions, which resist said force.

Cant be arsed so....

Assuming the same hub and rim. The bracing angles are near as dammit the same, as are all the vector-y thingies, and you can simplify things down to the sum of the spoke tensions. The 24 spoked wheel has 14% less spokage. But then you could always (and should) add 14% more tension to these spokes. If thats not viable, you should have more spokes anyway.