I like a Scotch that is smooth in flavor. There are many Scotch drinker who prefer the "peaty" flavor of the Scotch. As such, the Auchentoshan 18 is very smooth (the difference in the 21y is only noted by the pocket book), Aberlour a' bunadh is another great 'smooth' Scotch. The Aberlour has an interesting characteristic, it is non-chilled filtered and bottle straight from the cast ('bout 120proof). It should be, IMHO, watered thoroughly. Here is the interesting thing, because it hasn't been chilled filtered like most spirits, when you poor it over ice the particles that would normally be filtered out become visible and the Scotch appears almost 'milky'.