I don't know that its entirely fair to lump Canyata and Rich Harvest Links together, despite their obvious similarities. I don't think either belong in an overall or even modern top 100, but Canyata is a pretty good course and certainly could merit a spot in the top 200. I'm not going to lose sleep over it missing out, however, and can think of bigger omissions. Rich Harvest Links on the other hand...I think I'll just keep quiet other than saying that GolfWeek got that one right.
Brad--the one course I will guess your panelists might not have seen in sufficient qualities is the Alotian Club. If they have, its by far the biggest omission on the modern list for my tastes. It should be in the top 30.
Otherwise, the best courses I've seen not on these lists are Tullymore, Lakota Canyon, Sherwood, and Cornerstone on the Modern side and South Bend Country Club as a Classic. I have to think SBCC would make it if it were a bit closer to Chicago. It seems like most of the Engh courses have started out on these GW lists and fallen over time. I think they're fun, but they're different so I'm not surprised that they generate varying opinions.