OK, I was wrong about not knowing anybody who has been to Gigha. Why, oh why Adam, did you and your charming wife not mention that to me when we last met?
As for Kintyre being an island, I guess by the definition Cornwall is one too, and maybe even Kent. To me, however, Kintyre will always be a Mull, and a damned good Mull, come to think if it!
I've heard great things about Traigh too, particularly from Sir Boab Huntley and the legendary and sorely missed Slag Bandoon...