-1 for Ardbeg, really don't like it, but then with the exception of Bowmore Darkest I'm not a fan of Islays.
Macallan is always a safe bet – loads of different ages to suit budgets too.
For special occaision presents, the whisky shop does some of it's own bottling which can be interesting.
I'm also a fan of stuff matured in different casks (sherry, burgundy etc). May not suit a purist but can impart something different.