Tom,
I would tend to agree with Rich on the topic of the Portland course since he has been there and done that and with everything that I have seen of the course. In what I have found Mackenzie was more than willing to tilt anything that could be subjective in nature towards whatever view would help to inflate either his ego or his reputation. An example follows of this habit.
In my research on Maxwell I found several comments by Mackenzie about a course in Oklahoma that he visited that was constructed by Maxwell. He was quoted as saying the course was far superior to three courses he had heard so much about before seeing them on his journeys in America. The three courses he felt were inferior were Garden City, The Lido and The National Golf Links. The course he thought was superior was Twin Hills. So I would always take Mackenzie's matters of opinion with a block of salt.
Now Twin Hills is a very nice course with some excellent holes and a very superb routing for the site, but I would never classify it as being in the rarified air of those other three. It is without a doubt that that Mackenzie was trying to inflate the reputation of someone that was soon going to be his partner in business. In talking with a relative of Maxwell's that also met Mackenzie, they thought Mackenzie was a very nice man with a bit of bravado but wasn't afraid to add any puffery to comments.
Basically what I'm getting at is that just because a course was done by an architect and they say it is an excellent course doesn't really make it so, even if it is a course done by one of the heroes that so many on this site bow down to every night.