If it's peaty malts you like then with the old favourites from Islay you won't go far wrong and as has been said Lagavulin 16 is the peatiest of them , with Laphroig 10 good value too. There are some good ones in other regions too, though not so well recognised. About 18 months ago about 40 miles from home I got diverted off the main road , missed the diversion back and poddled along a pleasant B road for about 5 miles which took me past the Ardmore distillery. I'd seen the whisky on sale but never knew where it was. Anyway , next time I saw it , I looked more closely and bought a bottle. It was written as "peated" on the bottle and turned out to be quite a nice peated malt if you like something at the lower end of the peated scale. I guess it would be classified as a "Speyside " malt as its on the Eastern edge of Speyside, worth trying if you want something different from your peated malt.