Hmmm thats a diffcuilt choice!!!!both hardwares bring a different feel to the bag...
I like the contrast with the smokey gray and gold hardware gives it a verstalie feel, the sliver/gray is also nice...but somehow i feel that the croc scale stands out more with the gold hardware...if you look at both pictures you posted side by side you can see the scale is much more visible with the yellow gold hardware, whereas the sliver hardware it kinda fades away...I personally prefer bags with contrast hardware...it brings a certain edge to it. It really depends uniq do u have many bags of that style with yellow hardware?