Melvyn
All three clubs (Prestwick, Prestwick St Nick's and Royal Troon) have fantastic histories so it would be a bit pointless getting into a discussion on that but then as discussing golf on the internet is a bit of a pointless endeavour anyway, here goes.......
St Nick's, one of my favourite courses, HOWEVER (I know I shouldn't shout) someone once said, Henry Cotton I believe, that St Nick's was like an Open championship course in miniature. A very apt description really. Not dissing it as such, just putting it in its place. I could also add that the clubhouse lacks charm, even by Troon standards, and the members have illusions of a grandeur that the club simply doesn't have IMO. The fact that Old Tom was a member in the early days when the club borrowed a course from Prestwick GC and then laid out the original St Nick's course which like most Old Tom courses has now been radically altered doesn't really compare with the other two clubs. So that's St Nick's kicked into touch.
Then there's Prestwick itself. Fantastic place. I've a great empathy with a club that resolutely refuses to make concessions to the modern politically correct outlook. Its as if time stopped in 1925, which in a sense it did, that being the last time they staged an Oen. When you look at it most of their history is pre-historic in golfing terms and indeed 1925 was the only Open the course hosted in its present format. In comparison to Troon which has had more rounded evolutionary development with fantastic history of great competitions that didn't involve hickory shafted clubs, Prestwick has done nothing in the last 90 years as I'm absolutely certain you'll agree when you stop to think about it.
So there you have it Melvyn, Royal Troon really is the west of Scotlands golfing Mecca
Niall