I don't own a bottle, and I probably never will, but I've tasted the Blue. Ralfy hit it on the nose. It's waaaaayyyyy over priced for nothing especially exceptional. I love the Green. The Black is good. The Red sucks.
Yes. Yes. Yes and yes. I actually always have a 1.75L bottle of Black on hand and it goes over well with friends who want a little extra taste but don't want to be bowled over by their whisky. I would never buy a bottle of Blue at the price it goes for around here, but I did stand in line behind a guy who bought two cases of it recently when Binny's was having a 15% off sale on all spirits. Even with the discount it wouldn't be worth it to me.
"I distrust a man who says 'when.' He's got to be careful not to drink too much, because he's not to be trusted when he does." Sydney Greenstreet
Hmm. I love the Green but I couldn't drink a cask strength bottle of McCallan (my only experience with McCallan).
Well, if you're ever curious about sherried scotches, Glendronach Revival is a good example of a balanced one, much different from the Macallan CS. Not my cup of tea-colored whisky, but I'll admit it's good.