Ed,
Is there anything to the right of "f-ing goofy" on your scale? You might want to consider it after you've played SS Blue.
From the perspective of the shot into the greens, I think it is easier to hit the SS Blue greens, especially if you're approaching the greens from the right angle. The greens are generally maybe 50% larger than those at OC so they should be easier to hit. Getting close to a lot of pin positions on SS Blue is another matter entirely. There are many contours on the greens that can and do move the ball away from some pins, especially if you're coming from the wrong direction. Trying to figure that out on your first play, or even tenth play, will be a challenge.
The SS Blue greens are also less fortified with hazards, for the most part, than the greens at OC. As a result there are more opportunities to run the ball on at SS Blue. There are more options to recover at SS Blue.
From this perspective, I'd say that OC is right up there in difficulty in hitting or recovering from around the greens. I don't think it wanders into "goofy" territory - it just requires a very high skill level.
On the greens themselves, for putting, I think SS Blue is more difficult (and fun if you don't get too serious about the weird things that can happen), partly because the greens are significantly larger, often leaving you with a longer putt if you reached in regulation, and because the contours are more frequent and bolder at SS Blue. I had a nice 4 putt at the 11th at SS Blue (they re-cut the hole right after our group went through - the hole location was untenable given the green speeds and wind that day). Never had a 4 putt at OC in multiple plays.