Rather than start another Streamsong thread, I'll just tack on to this one.
I have just returned from a 4-day, 6 round trip with 14 guys from my home club. Everyone had a great time and everyone LOVED both course. When asked to pick Blue or Red, our first vote was 6-6 with 2 saying they were equal. When forced to choose, these guys both gave Blue the nod. Not surprisingly, those expressing a preference for the Red were our lower handicaps (1 through eight) and higher handicaps (8-15) chose Blue, except for me, a 4 handicap.
When asked to split 10 rounds, the lower handicap guys tended to go 7-3 or 6-4 Red, while the higher handicappers said either 5-5 or 6-4 Blue.
A few random comments: Our group played the Blue course from the Black tees every round and saw no reason to change. We played the Red from the Blacks the first round, and changed that to Black on the front nine and Silver on the back. On our last round, we played the Red the same way, except we played the Green tees on the par fives on the back. Hole 18 Red is a much better hole from the Green, IMO.
My buddies are non-gca types but all serious golfers. Those preferring the Red said they like the way the tee shots set up (which I take to mean they were confused on where to hit it on the Blue...) The Red has some classic centerline bunkers with clear choices to be made on the tee, so the "sticks" in my group naturally liked that better. For example, Hole 11 gives you the option of going high right and having the best look at the green, but the tee shot is likely to hit into the upslope and not roll as far. Lower left will run much farther, but require an uphill approach and you'll have to take on the front left greenside bunker. (I took this option and had to shape a perfectly hit 4 iron draw.) So while the tee shots are far more demanding on the Red, this is not something that low single digit handicaps seem to mind.
I think the Blue requires far more plays to comprehend. I liked it more after my thirsd round but would need to play it more to better understand everything that is going on.
I was really surprised to see a Biarritz on a Coore & Crenshaw course. What a great version! While the hole does not have the classic side bunkering, the right side has a high dune covered in natural vegetation, and the left side is a severe downslope so most pulled shots will wind up 30 yards or below the green. But the hole plays exactly how a Biarritz should due to the firmness of the green. Those trying to hit full shots to the back must carry the swale or else it will roll all the way back. I hit knocked down shots well short of the swale that rolled nicely to the back, but to get it close to the pin you really need to play to the right half of the green to catch the righ-to-left slope. Just a really fun hole.