James:
For what it's worth, I really liked Dunaverty - the green complexes aren't up to much, but the routing is pretty compelling (and picturesque), with a fair few half-par holes, cross-overs, and up and overs for the adventurous sort. (Tom D gave it a 3 - from 1983 - but I'd feel comfortable going with a 5, I think.)
Never bothered playing Carradale, but not too bad of a stop-off if driving up the east of The Kintyre to catch the ferry to Arran. A pretty fun loop that actually: Machrahanish, Dunaverty, Carradale, Shiskine...Ayrshire.
As for Tobermory, a couple of tiny pictures on their website seem appealing enough to give it a try.