Hi, I am going to travel to England on vacation. Anyone knows whether it is more economical to exchange chf to pound in CH (its around 1.75:1 now) or to get money from ATM in London?
Thanks!

Unless you are worried about saving a coupe of CHF here and there, I really wouldn't worry about it. The banks'll screw you one way or another.

I tend to pitch up at the first cash point I get to and withdraw a largish amount that should keep me going for a few days (you should limit the number of withdrawals overall).