Evan,
I have played all 3 at the Prattville site, and each course is different. The Judge is a beast running down from the 200' bluff and meandering through oxbows in the Alabama river. This course beat the @#$% out of me. The wind was up, and even playing damn good golf from the 6700 yard tees, I was Judged... unworthy. Just hitting the first tee shot off of the bluff to the ribbon of fairway was cool, though. This is penal golf at its most penal.
The Legislator spends part of the time up on top of the bluff and part down in the flood plain. Not nearly as much water as the Judge, but still challenging. I would say it's a typical RTJ Golf Trail course with not many memorable holes, but doesn't cost as much in lost balls or greens fees.
The Senator is a feaux-links course with huge manmade mounds. Surprisingly, this course played the softest of the 3 BY FAR, when I was there. There are a bunch of these types of courses up here in Indy (Trophy Club, Heartland Crossing, and Purgatory), and I thought it compared pretty favorably to those, but not worth a special trip.
So, no ringing endorsements here. I liked all 3 courses, with the WOW factor of The Judge offsetting the tough, tough conditions. Go and play one of them, (I'd say Legislator or Judge if pushed) and be sure to drive your cart up the Sky Bridge--that's cool in and of itself.
BTW, I also strongly recommend the par-3 course in Opelika. Normally the best land is saved for the championship layouts at a place like that, but not in this case. Several holes either on, near, or over the lake. We had the course to ourselves and it was very cool. Hope this helps.
rob