Compared to the British economy, the Euro is weakish - it's only recently that it's dropped from £1 = €1.50 to £1 = €1.25. Your money would be safer as sterling... as long as the American dollar continues to fall. If it begins to rise, then you'll find yourself in a position where if you convert your sterling back to USD, you'll have less than you started with.

Plus there's the fact that the British economy is slowly being fucked, with ludicrous petrol prices and high interest rates (well, 5% - the highest they've been for years), but that can be traced to America and your damned wars and the credit crunch a year or so ago.