I saw all three at Expo, my photos are below.
Black looked the best.
If you have a growing collection of games with colored trim, black will fit in as more modernized.
Second best was the Gold.
It was not as horrible as I imagined. There are many styles of mustard, so I guess it could match one. Definitely not French's though. Gold will also look fine in a row of games with colored trim.
Stainless/silver was my least favorite.
It's very neutral -- nothing special about it, silver seems dated. If you have a row of stainless trimmed games, or you just want the classic look maybe you want to stick with stainless.