i like the demon too. It is hard to compare anymore because of the different riding positions. Superman is the last to kind of make me nervous. Raging bull is cool for the height and the shallow seat and the lab bar that barely goes over your knees. It makes you feel as if you will fall out. Xflight would have been much better if all of its movements weren't so slow. But for your standard car coaster experience at SFGA, i'd have to choose Batman.
I loved shockwave. That would make me pass out if I sat near the front. Iron Wolf was also a favorite as was ZForce before it.
Powder Keg in Silver Dollar City (Branson, MO) is my current favorite. Mag launch right in to a zero-g hump and then it drops you down the side of a mountain (as much as the ozarks are mountains). It is definitely a different coaster experience when they can use terrain for speed rather than having to clickety clack up to the top.