We'll start with the Islay (pronounced eye-lah) malts.
Laphroaig 10yo, 15yo, 18yo - I don't think they are making the 15yo anymore which is a pity as it is more subtle expression than the bull in a china shop that is the 10yo. I've heard the 18yo is fab but its also about a ninety notes, the 10yo for me so...
Caol Ila 12yo, 18yo - Got a bottle of the 18yo from Granny G a while back and loved it, not a big peaty malt but delicious and salty. Alas, I have not seen it or the 12yo since.
Bruichladdich 12yo, 17yo - had both of these at the same time some years ago. The 12yo was nice while the 17yo was very very tasty, a little peaty but smooth with it.
Next - Other Scotches
Oban 14yo - I only ever drink this in restaurants, but its always good if a little pricey at about 60 bills.
Cragganmore 12yo - the only one of Diageo's Classic Malts I've not tried.
Macallan 12yo fine oak - Love this one, recently accidentally inveigled a fellow wedding guest to buy 2 shots of the 18yo at about 16 quid a shot - sorry Andrew!
Glenmorangie Classic 10yo / Lasanta 12 yo - recently fell back in like with this distillery, the classic is very fine and the Lasanta is a sherry finish that is also very pleasing - see here.
Dalwhinnie 15yo - Drank this at a couple of card games courtesy of Mr J. Liked it a lot.
Irish Single Malts - I have been recommended both below as a good, inexpensive starting point for my Irish Whiskey odyssey.
Connemara peated single malt.
Tyrconnell single malt.