I'd say wind is underrated if it's the 1-3 club variety. If it's blowing a steady 30+ mph it's overrated.
Half Par Holes
Properly rated - half under par holes are overrated because everyone likes a birdie. half over par holes are underrated for the opposite reason. Hence the properly rated.
Chicago as a golf town.
Underrated. It is one of my favorite cities in the world for golf, however, many people over look its greatness.
The Old Course
I already played earlier so I'll just disagree with Chicago being underrated. It's probably underrated if you are an out-of-towner or club member with connections to get on many of the private clubs, but for the average Joe Schmoe, the public options are woeful values and the schlep through traffic to get out there is downright depressing. I played Jackson Park on the reg just because living in the city it's the only place you could get to in less than 45 minutes. Sure, if you've never been and can GV it on in on a weekend and whip it around Butler, Chicago, Shoreacres, etc, it's a dream. That being said, Harborside is a decent track and Pine Meadow up in Mundelein is pretty solid for the 99%ers.