Well, having plenty of time on my hands I decided to conduct an impromptu TasteOff between these two institutions of higher Chicago cuisine. W.C. is long-standing in the nabe while GC has just arrived on Clark north of Fullerton.
1) Ingredients and bundling: definitely favors Wieners Circle, with 2 huge pickle slices dusted w/ celery salt vs. 1 thin slice from Gold Coast
2) Taste: Somehow I just give the edge slightly to Gold Coast here. A bit more "char" in the taste, a more lingering beef taste...a slight edge. Tried numerous times and GC came up slightly better every time, but very slightly.
3) Atmosphere: hands down to Wiener's Circle. This menagerie never fails to entertain.
Both dogs were tasty...I'll probably lean slightly to Wiener's Circle overall given the moveable feast of humanity there, but Gold Coast flavor is a solid contribution to the neighborhood.