Just my opinion:
Of the two, I prefer the wood.
Although, if you still have it, my real preference would be the original steering wheel, which I think is way cool. On my 71Z, I removed (and sold on e-bay) my Grant racing/steering wheel. I replaced it with the original, which I refinished. The larger wheel gives me a little more torque when steering (I am getting older), and is more comfortable to hold on long drives.
Rich