Philip,
Some years ago, when I was there, I had a long chat with Tina De Foy, the Secretary (and wife of Professional, Craig De Foy, an ex-European Tour player - they've always had top professionals). I suggested to her that the Abercrombie clubs should get together once a year for an Abercrombie tournament, rather as the MacKenzie ones do. She came back to me saying there was no interest in such a tournament.
As well as The Addington (which is the most characterful of the Aber Courses) Bovey Castle in Devon (was known as Manor House Hotel, but recently bought by de Savary and slightly remodelled by Donald Steel's company), Worplesdon (to my mind the least of the trio of Woking, West Hill, Worplesdon, but it does have some brilliant holes and a very tough finisher, but it also has a dangerous main road to be crossed on foot twice in the round), and Knole Park (of which I have no personal knowledge). Cornish and Whitten also mention Cowdray Park (which the club credits to Simpson) and West Kent.
Of the four Aber courses I know, I don't think there is anything similar between them (which is something I have also thought about the Fowler courses I have experienced). All four are interesting to play with their challenges seemingly based on imaginative use of the topography - all those gullies and dips at The Addington, the broad sweeps of Coombe Hill, the much more heavily bunkered heathland nature of Worplesdon, and the brilliant use of the ubiquitous river at Bovey Castle. The one thing they have in common is some really good short holes.
I think I've mentioned this before, but on that most recent visit to Coombe Hill (winter 1999 or 2000) I did not play, but walked the course with the course manager. I did so in my Wellington boots. I left them in the locker room while I talked to Tina and when I went to retrieve them I found them being buffed up like new as if they were a pair of member's golf shoes!