Blew the dust off my account just for this thread!
My dream bass would be lightweight Jaguar-style ash body with walnut top, maple neck, purpleheart fretboard with pearl blocks and white binding, 4 string 30" scale, nickel hipshot hardware and narrow string spacing, single guitar-sized humbucker in 'sweet spot' (Dunable Baphomet or similar), single volume, no tone, passive electronics