I'll cast my vote for
Design Three by S4VV4S. I like the White/Yellow gold contrast and the design is very clean.

If I may, one thing most people are likely not thinking about is that even with a reasonably simple design, minting a coin with that design can have issues. I was even afraid my design would be too complex, but there are several others that have WAY more stuff in them. For example, Mr.Baus gear design in my opinion looks AWESOME, but I don't think there is any way that can realistically be a coin. Certainly not with that amount of detail.
And Coinographic would you mind removing my original submission (Design 22) and just leave my updated submission (Design 4) available for voting? I'm not sure if it was an oversight, but I want this voting process to be as fair as possible.
Thanks and good luck to everyone!