The Big Chef was always my favorite. I recall gagging over my first Big Mac - similar, but a much different item. About every 5-7 years since, I've tried a Big Mac (primarily when enticed with a coupon) to see if it's really as bad as I recall. It always is. At one time, they ran an ad campaign something along the idea of one keeps coming back for a Big Mac. For me, it's more that a big Mac keeps coming back on me (for many hours).
Closest I've found is the Steak & Shake steak burger with their Frisco sauce.