The short answer, by far my stand out surprise was The Scarlet Course at OSU. Loved the back 9.
The lengthy version.....
Other first visits I really enjoyed- Royal Aberdeen, Sebonack (I really liked this course, although if I'm being honest the greens seemed a bit small for the movement), Muirfield Village, The Bridge, Moray Old (really great fun!), Machrihanish (cool place, around 12 to 14 really enjoyable holes and the rest are ok)
Great return visits- Loch Lomond (perhaps one of the best back 9s in Scotland) Maidstone, NGLA (perhaps a bit too 'green' and soft compared to how I remembered them for my liking, it was post hurricane though!)
Old favourites- TOC, The New Course
Regulars that I love and will not be moved on- North Berwick, Luffness, Muirfield
There are of course many others but I felt all of these were noteworthy for various reasons.
Carnoustie failed to impress- after playing links golf my whole life and having played the majority of 'great' links in Scotland I was left wondering what all the fuss is about. I have walked it many times before but never played. Fun is not on the menu and I felt like I had played pretty well! The front 9 is nothing to write home about in my opinion. God knows what high handicappers think of it unless they are golf sadists. I will say the greens were in fantastic condition.