The difference, by the numbers
Both have Angostura bitters. Only the Art of Choke has lime juice, Demerara syrup, Green Chartreuse, white rum, Cynar and mint; only the Toronto has rye whiskey, Fernet-Branca and simple syrup. In parts, an Art of Choke is ½ lime, ½ syrup, 1 Chartreuse, 4 rum and 4 Cynar; a Toronto is 1 whiskey and 1 Fernet. By volume, the Art of Choke is 40% spirit, 40% fortified wine and bitter, 10% liqueur, 5% syrup and sugar and 5% citrus; the Toronto is 49% spirit and 49% fortified wine and bitter. That makes them close cousins on the ratio map.
The Toronto is the stronger drink in the glass (26.5% ABV against 19.7%) and holds more alcohol (1.68 standard drinks against 1.23). The Toronto has more calories (about 175 against 156), but the Art of Choke has more sugar (8.7 g against 2.7 g). Both are stirred; the Art of Choke is served in a rocks glass, the Toronto in a coupe.