I usually go for an Islay when I buy Scotch. There's nothing like Laphroaig when the weather is cold and damp. Ardbeg is my favorite though.
If you want to give Islays a try but don't want to spend a lot on a test bottle, try McClellands Islay. I believe it's 8 year old Bowmore and it's not bad at all. Price is about $20.