In reply to Blue Straggler:
Yes I've been to both. Both are v good in slightly different ways, as you would expect...
Went to Sardinia (Cala Gonone) a few years ago, Turky (Antalya) a couple of months ago. We climb similar sports grades.
Stayed in apartments at both but did see the campsites at Antalya. JoSiTo's is v well organised and right next to the lower tier of climbing but, personally, it would have irritated me if I'd stayed there (people seemed a little too cool for school). Climbers Garden just below the upper tier (arguably better climbing) but more basic.
Sardinia is definitely more of a beck holiday mixed with climbing. Antalya - well there's not a lot more to do in the immediate vacinity other than climb so it's more of a hardcore climbing trip really.
Although my recollection of the climbing at Sardinia is a little hazy now; I do recall a fair amount of polish and, although it seemed developed out to an extent, there were still some new routes going up. There were some impressive slabby routes if that's your thing.
Antalya seemed, to me, to be better quality climbing (hardly any polish except the very oldest routes) and a good variety of v steep, steep and some slabby by stuff.
Antalya would probably be better for your climbing; Sardinia would probably be a more relaxed trip. Both have some quality climbing though a lot of the older stuff at Sardinia was showing the wear. Both beautiful areas in different ways (Sardinia's coast line and the mountains above the town creating a natural ampitheatre vs Antalya's less developed surroundings with mountain views).
Hope that helps.