Cavendish is well routed as it uses the available features (railway embankment, wall, ravine/stream) very well, covers a hilly site without a single slog walk (the 3s do most of theheavy lifting), retains a wood in the centre of the property and manages to create a course suitable for aerial play to suit the wet conditions of the area by in the main using excellent green sites rather than by bunkering.
Alwoodley is less obviously well routed, but it did take a stroke of genius to come up with the crossing 3s to cope with the narrow bit of the property. But you also get holes like the 8th with the green angled against the slope of the fairway.
Ciao