Talisker is one of the (few) must drink whiskies. Definitely a benchmark, whether you like it or not. The other "must" is Lagavulin (particularly the 16 yo). Also interesting to try is Laphroaig (very iodine-tasting!) and Ardberg. Really superb. My other favourite is Macallan, particularly the older ones (e.g. 25 yo). For these it is best to use a brandy snifter or a burgundy wine glass (big bowl to let you swirl it and concentrate the aroma). Some of the whiskies -- but not all -- benefit from adding a drop of water ... literally a drop, it seems to break the surface tension rather than dilute the whisky. The better ones cannot be drunk with ice, without destroying half their impact.