I think that may be because in Britain we are not too far from mainland Europe, who are one hour ahead. What i'm saying is, we are just on the "one side of the boundary" between GMT/BST and CET/CEST if that makes sense, so I think its natural to debate if we are better off on the other side i.e one hour forward. Personally i'm in favour of moving our clocks forward an hour, I guess I just like the thought of it still beign daylight at 10pm during June and July!