The interplay between lines and chords is of interest, so we would lean towards clarity. The rapid motion suggests a bright, jubilant combination. A pure principal chorus through the mixture provides both clarity and brightness. We will use an independent Pedal registration, but one that does not stand out, since the Pedal serves in more of a bass function than as an independent line. The Pedal principal chorus through the mixture would suffice.
Great: Principals 8', 4', 2', and chorus mixture.
Pedal: Principals 16', 8', 4', and the chorus mixture, if present.
If not:
Some alternatives: