In reply to james dunn:
James,
I've got both the Phantom lites (though my pair are 3 years old and no longer waterproof or warm) and a new pair of Batura's I got last winter. The Batura's are much warmer and ideal for Alps in winter, but are much less waterproof than the Phantom's, not ideal for Scotland in winter with all the bog trotting involved. Saying that, I also have an old pair of Asolo Evolutionise, the black ones. These are very warm, but do not have much sensation for climbing, definately much less than the Batura's. They also have a very flat sole unit so walking is not as comfortable.
You're best bet might be to stick with you Phantom's for Scotland and get Batura's for the Alps, or even go to La Sportiva Nepal Extreme's which my mates use in the alps in winter and Scotland in winter (they don't seem to fit my feet well.)
Hope this helps a bit.
Martin