Uxbridge is a special station because you can get a Piccadilly train or a metropolitan line train from the same place.
Finchley road is a special station because the Jubilee and Metropolitan trains going in the same direction stop at the same platform island, the eastbound metropolitan and jubilee trains share and platform and so do the west bound ones; you can change lines without walking much.
The same is true of Ealing common, you can step off a Piccadilly train and stay on the same platform and catch a district line train from the same platform. Changing lines without walking. The district line goes to Barking, Woof. Barking station has commuter trains to Southend-on-sea.
kings Cross is a very special station, you can get three different lines from the same platform, plus down the escalators are platforms to several other lines, plus you can get commuter trains upstairs or take a train to France if you walk across to St Pancras next door.
Mile end is also useful, you can get to the central line or Hammersmith or District and they're side by side.