I would have to say Scottish. Dale's obedience school teacher had a Scottish accent and it just sounded so cool. My next door neighbor was born and raised in Scotland, and she has the cutest accent, although, sometimes i just nod when she talks, b/c i havent got a clue about what she just said, LOL!! Her husband has a Brooklin, NY accent, and so their son said to us, "You can imagine how hard it was for me to learn to talk when i was a kid with a Brooklin dad and a Scotish mom!"

Second fave would be Austrailian.

However, i do like South Philly accents, but they tend to talk a bit loud