Apperantly copper has a lower resistance than gold.
Metal Resistivity,
gold, 99.9 pure, 0 degrees C 2.22
silver, 99.98 pure, 18 degrees C 1.63
silver, electrolytic, 0 degrees C 1.47
copper, annealed, 20 degrees C 1.72
platinum, wire, 0 degrees C 11.0
Hmmm, I wonder how much it would cost to ship wire from Flordia to Chicago.