I am amazed at how many of these I've played.
I've played about 4 rounds of golf in MA and two of the courses I played on on this list. I actually think Newton Commonweath wasn't bad, but the posts about that course on here are about 5 years old by now. Ponkapogue was horrendous. Almost the worst I've ever played. The greens looked like the one bwdial just posted.
I've also played 3 courses in PA, one of which, Cobbs Creek, had a mention here. I don't remember the course being that bad. Its run by Billy Casper now, maybe its improved recently. That was actually for my bachelor party, which was supposed to be in Atlantic City, but the area evacuated because of a hurricane. We made it through 11 or 12 holes before the hurricane hit. We played 2-3 more holes in sideways downpour and called it a day.
There have probably been 7-8 mentions from my area (DC Metro Area) though I haven't played most of them. The DC courses are the worst though. There are three, the one I never played was Langston, which I think is the first club in the country to have an african-american pro. That was mentioned early on and led to some heated posts. Its a landmark, and a dump.
But I've played the other two, East Potomac Park and Rock Creek Park. I would venture to guess that the greens at East Potomac run around 6 on the stimp and the course is generally in bad shape. A par 5 flooded about 3 years ago and they still have it set up as a makeshift par 3. But Rock Creek. That's the winner in my opinion. Its a tough, narrow course. The fairways are so hard its like playing in a parking lot. One season they killed the greens and set up temporary greens for 1/2 the holes in the fairway.