Well, my first reaction was: God, the Blu-ray is unbelievably ugly.
After that, I guess I could see myself being equally happy with either the workprint or the new colors. I think the problem for me is that, without a reference, I'm just looking for things that are obviously way out of bounds, and I don't see much in either.
I'm assuming you're making changes based on the "they made the colors of the 97SE good on film before they made them bad on the DVD" theory, using some sort of adjusted 97SE as a reference? What sort of adjustments?