Would silver cables beat UP-OCC copper?

All things considered, the final, conclusive answer to your question of would silver cables beat UP-OCC copper?

It depends....on system synergy, personal taste, cable design, etc.

Now, let's move forward to final conclusions on the SS vs. tube debate, and wrap up the analog vs. digital debate as well.

12-04-14: Dave_72
So, with that in mind, it sounds like I would prefer the silver, but I can't really say 100 percent.

That is why performing your own listening tests is so critical. No one else can really tell you which flavor you would prefer.
Many will gladly tell you what works best for them, but in this hobby, what works for some, doesn't work for others. You pays your money, you takes your chances.