Universities are more interested in people who have done interesting stuff outside school and without their school's help. Work in a charity shop, do some social volunteering, train for a 5k Run etc - you can organise and do all this sort of stuff yourself and it actually makes you look more mature and outgoing if you haven't done this a part of DoE. Having stuff handed to you on a plate doesn't show very much about you - just that your school told you to do DoE.
Just remember that you shouldn't just 'list' this sort of stuff - you need to explain why you did it and what you got out of it, ie. training for a 5k shows determination, working to a goal/deadline, a sense of achievement/pleasure when you did it plus an understanding of community/social responsibility etc etc
Find out which unis are hot off the mark here