Overall, I love it when you can get the haunting drawn sounds. Add in the occasional Uilleann pipe as a background and I'm there!
I agree Jimmy, I love the Highland Pipes, but nothing comes near the Uilleann pipes.
Liam O'Flynn is another favourite piper, I bought one of his albums recently "Out to an other side".

What with buying music and kilts - I'll alway be poor (but rich).