Never been to Scotland.
Looks good.
I always go to southern France for my jollies.
It's a couple of days ride to get into the alps, but at least the roads are pretty much empty all the time and in the Summer you're guaranteed good weather.
I love Scotland and have been lucky enough to have visited many times (some of it work) but have never manged to get a bike up there. I hope to change that sometime soon.