Lots of variety, tree lined runs, some fast lifts
Some older, slower lifts
I really like Alpine Valley. Of the places close to Chicago-land, this is my favorite. The have conveyor belts for the beginners (several of them in different areas), plus a good selection of green and blue runs. They also have some blacks. The hill isn't too high, but what do you expect for southern Wisconsin.
The Lodge is nice, and they have a decent bar (with OK food). Prices are reasonable.
The terrain parks are well maintained, they have some good sized jumps and some (not many) rails. All the runs are separated by trees, which I like.
Overall, a good place to go. Worth the extra drive from Wilmot.