Tim, we seem to be having a disconnect here - I believe I've said already at least twice there is NO WAY ONE WOULD EVER GO DOWN THE MIDDLE INTENTIONALLY. I add to this that if one does, the ball is likely to roll down to the right due to gravity... but in any case, the middle is NEVER a play.
So yes, you're gonna try to go up the hill or down the hill, left or right. There is a definite choice. I still don't call it a "split fairway", for the reasons I state above, but my definition is different from yours and like I say, that's cool.
As for the strategy... Having been there just once, take my words with an ocean of salt, but depending on where you've left your drive, I'd have to say it takes a long 2nd shot in EITHER CASE to have a view to the green for your 3rd, but it might even be slightly easier going left (top). As for angle in, I can't see either side being that much of an advantage, but again, the top left would seem to go straighter into the green and not require carrying the right side bunker, as might be required from the lower right.
To be honest I don't see huge strategic advantages either way... the only real thing here is that if you hit a big drive, you CAN get to a point where a well-hit 2nd shot can make it completely OVER the hill going left and go down the other side, which would be impossible going right... thus the only way to get to where you have a wedge to the green, or for the Matt Ward types perhaps even REACH this 600+ yard monster in two, is going left and hoping for the big bounce.
Given there's no huge penalty either way though, I don't see much RISK involved - the only thing there is that it might be a slightly EASIER shot to go right, but going up the hill doesn't take all that much, even though I sure screwed it up myself!
Like I say, great hole. Any that elicits this much conversation ought to be.
TH