I've been thinking about this recently, and the melee set that I think would work brilliantly would be Staff Fighting. Think Bruce Lee in 'Enter the Dragon' and the scene where he takes on about a dozen martial artists with an 8' long staff. In addition to straight-forward attacks, it opens itself up to things like foot sweeps, multi-target strikes, stuns, parry-repostes, knockouts, paralyzing 'nerve' strikes, overhead slams...the list could go on.
Visually it would be a feast for the eyes, with whirling staff effects, poses, pinwheeling sweeps, spinning turns, elaborate attack patterns etc. Give the staff a mettalic look and it would be even better!
