Single malt Scotches are my favorite, but there are so many varieties that you really can't generalize. Speyside, Islay, Highland, Lowland, Island, the list goes on. My current favorite is Talisker.
I find Talisker a bit peaty for my taste. Fortunately, there are enough different brands that I'm not forced to drink it.
For the most part, I like MaCallan, although it's hard to beat The Balvenie. Double Wood is good, Portwood is much better, but beyond my price range.
The only blend I like is Famous Grouse. It's part MaCallan and part something else.
Earlier tonight I had some Johnie Walker Blue that was given to a friend of mine. I wasn't impressed. It was smooth, but I didn't find the flavor particularly appealing.
I've had the Japanese Yamazaki. They can't call it Scotch because it's not made in Scotland. I found it very tasty.
Fortunately I have a couple of friends who are well off and share my taste in Scotch and cigars.
Speaking of MaCallan, the day I retired my partner came over to me with a tall, thin, brown bag. Inside was a bottle of MaCallan 18. He's not a Scotch drinker, so he was going by what the guy at the store told him. He asked me if it was an OK Scotch. I assured him that it was more than OK. He told me that he didn't want me to just put it on a shelf, he wanted me to drink and enjoy it.
I did.