I have two excellent 24 hour bus routes that stop at the end of my road that go all the way in to central London.
In a bit of a "my diamond shoes are too tight" complaint I wish the bus route that stops a couple of stops further down the road still went directly in to the City and on to Kings X rather than stopping south of the river as it does now.
I would also like more lateral routes covering the suburbs as there are a few places that are only 4 or so miles away as the crow flies, but due to the way train lines work I often have to take 2/3 trains to get there.