I see some of these restaurant offerings today, and the direction for hamburgers seems to be toward using a pound of 40% lean beef with 20 slices of bacon and ten slices of cheese with a special mayo-based sauce. Dip the whole thing in batter and deep fry it. Then wrap it in bacon and deep fry it again. In other words, way more fat than I want to eat.
I think I draw the line at a medium order of fries at a place like Burger King or Hardees. Lots of fat, but not outrageous.