I am new to this site, but hope to become a regular contributor!
IMO, there is no such thing as the 'Best Scotch Ever', as the tastes vary with mood, and I am true believer in single cask whiskies, which are as individual as finger-prints.
However, I do have some favourites in the regular single malt types, starting with Talisker Distillers edition, which is simply scrumptious. I would say Talisker is one of my favourite distillers, and unfortunately one of the only distilleries that doesn't sell casks to the Scotch Malt Whisky Society.
I'm also rather partial to the Balvenie Portwood, be it the regular or the better 21 year old.
Ardbeg Uigeadail is also a fantastic malt, and I also have a simply astounding Ardbeg single cask from the society, which is already unavailable.
I am sure as I try other bottles and my favourites will change, but one thing is for sure, it will be a fun and interesting journey discovering the various flavours along the way!