Actually BD, black label is good - but me, and most of my friends use it for general drinking (eg when we have to throw large parties and dont want to spend too much money....)
When we want to enjoy our scotch, we prefer single malt ! Blended does not even come close !!! (current favortie is Glenfiddich Solera reserve)
Have had blue label quite a few times (on corporate accounts
) to be very honest, I did not find it to be that great !!