I owned the Levinson 37/360S combination for about two years, the EMC1MKII for about two years and have owned the Wadia 861 basic since about August. The Wadia pretty much trounces the Levinson 37/360S, which I'm sure is better than the 390S, and the EMC1 in terms of detail, realism, resolution, etc. Between the Levinson and the Electrocompaniet, I'd choose the EMC1 -- especially at its lower price.
Also, where customer service is concerned, I've had very good interactions with Wadia.
Also, where customer service is concerned, I've had very good interactions with Wadia.