My suggestion would also be Fins & Things. My advice would be to do the first section and the last section. The middle section is boring, too much dirt and sage brush. The first and last sections are in the slick rock which is what I am assuming you are going for. Hells Revenge will also be fun for you. While you are driving to Fins & Things, go a head and go up Little Lions Back for fun.
Poison Spider Mesa may be fun, I did it in my TJ with open diffs the first time. Its a little scarier at first but is manageable. The middle section is a lot of fun with ledges.
Go into any of the gas stations and buy a book of all the Jeep Trails. I believe it is written by Charles Wells and he has a new one out. Well worth the $10 or $15 plus it has GPS settings for trailheads, obstacles, etc..