Good to see some good lists developing here.
What are the trends and similarities in these courses?
Pat Mucci,
I can only think of a handful of non-Par 72 courses built since 1988 that I've played. Whether or not this represents a trend in the market I don't know, but Tom Doak, Forrest Richardson and Robert Trent Jones, Jr. have all lamented the marketing side of the business and the need for Par 72 to "sell the course as a championship course" in their respective books.
I often wonder if the reason for some many weak Par 5s is that there are only so many things one can do with a par 5 design wise.
Also, Par 5s require a large amount of diverse terrain, and their longer nature tends to need more "design" for different players and for different options. Do their large footprints preclude a sub-standard golf hole?
Do par 5s complicate the routing? I think that could be the essential question for this discussion.