My favorite electronic device... hm. Hard to say. I'm going to go rogue and say my Steinberger GM4T Guitar. (it takes two batteries!) It's equipped with a Sustainiac Stealth model sustainer and that baby just sings.
+cuckoomusic . It does! I think if I hadn't already decided to keep digital as plug ins and save my hardware space for analogs I'd be saving for one. Some of the new plug ins are sounding amazing these days. For a Nordish sound check out the latest version of Discovery Pro. The dev fixed the filters and now it's really close, though the software doesn't alias quite like the hardware Lead 2x does.