I like the black one the best. It was their hat all during the 1960s when I was growing up.
As for the uniforms, my preference is for block numbers, like they wore with the sleeveless uniforms during the 1960s. To me, the simpler, the better. Block numbers are very sharp. (The old Steelers uniforms were the best in the NFL. These ones with the rounded numbers look ridiculous to me.)