Con Edison is surely a promising candidate between classic logos, due to its accuracy in terms of weight and shapes.
Excellent equilibrated logo blunt with thin line.
Con Edison represents in a perfect way the unity of a modern logo with a traditional one, making it everlasting.
The key to success of Con Edison is the stength of its color range, that breaks the space turning it into main protagonist.
Con Edison is a perfect sample of how a logo turns up to be a clear distinctive of its brand.