ARDBEG - The quality of the core range has gone down and for the most part the Day releases are garbage. The 21 and Twenty-something really were not that good all things considered. They're living on the past glories established through about 2009. That said, the Ten still offers decent value even if it is not as good as 10 years ago.
MACALLAN - I used to be a huge fan. The 12 has returned but the rest of their range is either way overpriced or basically not that good. I had the Rare Cask and I'd rather drink the 12. The 18 still has not returned in quality either.
HIGHLAND PARK - I still like the 12 yo but the rest of it is not nearly as good as it used to be and like the former two has gone way up in price. Similar to Macallan, there are a lot of gimmicks going on.
DALMORE - I used to love this distillery. Now I loathe it. It's like they found a bunch of subpar sherry casks and decided to get rid of them by upping the sherry content in the 12 yo. Give me the 12 yo from 15 years ago instead.
SPRINGBANK - Yes, I said it. I just had the new 25 and it was very bland. The 12 CS is much better. Still, there is all this living on the glories that were Pre-2002. I do think some of the younger Springbanks are making a comeback but they hype the 18 and the 25 placing themselves right there with the others mentioned here.
Port Ellen and Brora are hard to put here because much of the hype is around it's scarcity and not quality. Who's tried any of the recent releases? Same with Rosebank and St. Magdalene.