A quick reference guide:
5 - Brutal beatdown in every way. Length, difficulty, variety that could fuel a small state.
4.5 - Everything all wrapped up nicely. Some true Par 4's and 5's, or insane terrain.
4 - Good mix of stuff, elevation helps a lot. Or one theme explored very, very well.
3.5 - More bland, repetitive stuff, or a split of good/bad holes on a coures.
3 - A lot of niners, with the same desire to play as some of the eighteens.
2.5 - Something fun or tricky that separates from the bland.
2 - Fun to play, not much challenge. Some line shaping or hilliness to mix things up.
1.5 - Course that's really trying to be fun, but just falls short. Will do in a pinch.
1 - Painful. Not designed for people who want to have fun discing.
.5 - Semi-playable/not really disc golf. Or something better served for mini DG.
0 - Failure.
Not that these 9-ers are that bad, but the variety is almost impossible to get.
Illinois - 1
North Carolina - 2
Wisconsin - 1