I quite like the idea of myFantasyLondon - you could go adventuring in other peoples and generally enjoy London as it should be instead of the bubo that it is.

Five things in myFantasyLondon

1) Tubes that ran 24/7
2) Pedestrianise The Embankment and put some cafes on it.
3) Accomodation for the homeless
4) Return The Sun and 13 Cantons to the way it was before they ruined it.
5) Inhabited Bridges (this rocks)