Arlington or Tyson's Corner

Of course Arlington. Land above the Rosslyn Ballston Metro Line which constitutes 7% of Arlington County also gets 33% of the counties tax revenues. This is because in the 70s the county embraced a visionary wedges and corridors plan which preserved single family neighborhoods while allowing high density along the transit corridor. Subsequent research has found that a majority of metro riders on this line walk to the stations instead of drive. It's rather amazing.