The poll is asking which cable people would buy... nothing more or less. So, I'd vote for GS's cables. They're better than anything I've tried. I have not tried the Gronenberg's or 'Premium' wires so I agree the poll isn't really about Odyssey and/or Gronenberg.
Try 'em both. You could easily sell the GS cables if you didn't like them.. not sure how quickly the Gberg's would go... but you could buy them used on Agon.
-C