Both logical answers, but not 100% helpful. Looking to move, and haven't seen many properties in either location.
East of Thames Barrier looks clear, but don't want to live in Thamesmead or Ilford. South, it looks like Gatwick runs into Heathrow in terms of flight'paths'. Might be some gaps tho.
North, I haven't checked out. My nice map showing typical day of Westerly ops shows north of Enfield is clearish.
West, it looks like the best bet is either side the ILSs - Harrow, Ewell look like they avoid easterly ops take-off as well.