The letter G
The Case For: Its design, especially the lowercase, in typefaces where it’s two ovals connected by a descender? Just gorgeous.
The Case Against: Creeping in on consonant work that ‘J’ could be doing.
The Case For: Allow one to experience comforting showers, large bowls of brothy soup, putting on new socks, and having petting-zoo animals lick your cheek.
The Case Against: Pretty much everything else.