I use Kimber PK10 Golds and WyWires Silver PC's. The Kimber's are really good but the WyWires are more open. WyWires has really won we over. I have a pair of WyWires Silver speaker cables with Silver jumpers on the way; should have them any day.
As far as other PC's go I've listened to the PS Audio's, Shunyatas, Synergistics, WireWorlds and Audio Quest in the $600 and less cords and the Kimber's were better IMO, and the WyWires is even better. Both are very good. The Kimber is very neutral, and just gets out of the way. At first it seems laid back compared to others but it's not; it just gets out of the way. The WyWires does the same, but has a little more size to the stage but what it offers over the Kimber is it has depth and a little more air... it just breathes a little more. I have not heard the JPS's but the Shunyatas didn't do much for me; maybe their pricier offering are much better.
What ARC preamp are you considering?