Not quite for me. Would still prefer a game at Luffness to one at Goswick, eight times out of ten, but agree that Dunbar/Goswick is a much more even bout. As mentioned above, the problems with Goswick's finish, and squeezing in three holes after the original ground to the south was lost, detract a bit from my own final evaluation, but it's still a lovely place for a game of golf.
One course on the Northumberland coast that always seem to get oddly little GCA airtime is the Dunstanburgh Castle links beside Embleton Bay. This has some proper rolling duneland holes, and some (to be honest) considerably tamer holes on its inland side: the course runs up to the castle ruins, and whilst not perhaps quite as stunningly scenic as the nearby links at Bamburgh Castle (the latter not a million stylistic miles from Porthcawl), it is likewise a super place for a game and exceptional value (as indeed is the golf on this whole coastline), with the sporty 9-holer at Warkworth, Seahouses and the historic links in the village at Alnmouth to add to the local fun. Fabulous kippers, some good pubs, and not too far off the main Newcastle-Edinburgh road: golf on the Northumberland coast comes (very) highly recommended for GCAers looking for something just a bit different.