I've seen Kingsbarns, but not played it. I have not been to Renaissance or Castle S. I have played Trump Scotland. The common factor at Kingsbarns and Trump is that each hole is a separate entity - occasionally you catch glimpses of players on other holes, but the experience is rather like RCD or Birkdale in that each hole is in its own playing zone. They certainly feel big, although I can not think of any American comparison.
I have little experience of resort golf in Southern Spain or the Algarve. I haven't enjoyed my experiences there, but that is more to do with the tasteless environment and the presence of uncouth holiday golfers (mostly from the UK) and their drunkenness and general lack of breeding. I suppose my Algarve favourite was the old Vilamoura because it's actually quite British running through avenues of trees, affording privacy between adjacent holes. I quite admired San Lorenzo's design in its versatility, ticking the playability boxes for 20-handicap golfers while affording serious alternative set ups (particularly pin positions) for professionals (who don't seem to have played there). But the vulgarity of its surrounding housing was sickening.
I played the old Wentwood Hills Course at Celtic Manor before it was substantially altered and partly subsumed into the course used for the 2010 Ryder Cup. I am probably unique among GCA contributors who have played it to have enjoyed the experience. It certainly had grand gestures and felt enormous. The lowland holes by the river brought a sense of Florida to this bit of Wales, while the upland holes seemed imported from the Alps. This was one of the landmark courses built in the 1990s. Others included East Sussex National (Cupp), Hanbury Manor (Nicklaus II), Chart Hills (Faldo), London Club (Nicklaus), Carden Park (Nicklaus), the Oxfordshire (Rees Jones), Wisley (RTJ II). They have the trappings of the American country club - bag drops and drinks trolleys - but none of them imposes itself on you in the way that Wentwood Hills did and also , to an extent, St Mellion (older). On each of these courses you are very much aware of the boundaries of the property. In golfing terms I think I would happily go back to Chart Hills, but not in preference to nearby Rye or RCP (or Littlestone, for that matter).
Our grandest clubhouses are Moor Park and Stoke Park, which can keep up with the big American clubs for size, style and comfort. But Stoke Park is quite a compact course - I remember it when it was just another members' club no different from nearby Beaconsfield or Burnham Beeches (all quintessentially English). The big course at Moor Park, however, does feel spacious and grand - but not at all American (whatever that may mean). And I suppose it is in the clubhouse that most British clubs feel smaller than American country clubs. We don't have ballrooms, few have tennis courts, we certainly don't have carriage driving days, and I'm not aware of any with skating rinks. In the old days you changed your shoes in the car park, you certainly didn't bring the family to the club for the whole of the weekend, and food consisted of Welsh rarebit or a bacon sandwich. I can't think of a grill room in this area other than Mere - which is run like an American country club and can seat 500 for dinner. At Wilmslow the men's locker room has 6 showers and two lavatory cubicles, certainly no club or shoe cleaning facilities, yet it is one of the major clubs in a very wealthy area - look at the Ferraris, Lamborghinis and Bentleys in the car park.
There was one comparatively spacious newish course that seemed to me to be on the American scale - Portal, a Donald Steel design in a very rural part of Cheshire. It was developed by a farmer who sought to get out of agriculture. Unfortunately the economy went downhill and the farmer committed suicide. His legacy was an expansive course with enough space between fairways that even the wildest golfer couldn't stray onto a neighbouring fairway. They had intended to build a clubhouse/hotel with spectacular views at the highest part of the course, but the suicide and economic downturn killed that idea. Instead they squeezed in another nine holes on the main site (the original course was on either side of a minor road) and suddenly it became tight and badly routed, with a somewhat despised nine holes remaining on the other side of the road. How are the mighty fallen?