Хм, давайте посмотрим:
1002 * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa 1004 * bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb 1006 * cccccccccccccccccccccccccccccccccccccccc 1008 * dddddddddddddddddddddddddddddddddddddddd 1010 * eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee 1012 * ffffffffffffffffffffffffffffffffffffffff
gggggggggggggggggggggggggggggggggggggggg
1 016 * hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj * тысяча двадцать-один * * тысяча двадцать два * kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
llllllllllllllllllllllllllllllllllllllll * тысяча двадцать-пять * * 1 026 * mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
1028 * nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 1030 * oooooooooooooooooooooooooooooooooooooooo 1032 * pppppppppppppppppppppppppppppppppppppppp 1034 * qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq 1036 * rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr * Тысяча тридцать-восемь * ssssssssssssssssssssssssssssssssssssssss
tttttttttttttttttttttttttttttttttttttttt
* +1042 * uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
* тысяча сорок шесть * wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww * тысячи сорок-восемь * xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx * тысяча сорок-девять *
yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy
zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
1054 * AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA 1056 * BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB 1058 * CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC 1060 * DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD 1062 * EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE 1064 * FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF 1066* GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG 1068 * HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH 1070 * IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII 1072 * JJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJJ 1074 * KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK
LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
* тысяча семьдесят-восемь * MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM * тысяча семьдесят девять *
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN * тысяча восемьдесят-один * * тысяча восемьдесят-дв * OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
1 084 * PPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP * тысяча восемьдесят-пять * * тысяча восемьдесят шесть * QQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ * +1087 *
RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS * тысяче девяносто-один *
TTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT * +1093 *
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU * +1095 * * +1096 * VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV * +1097 *
WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW * +1099 *
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
YYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY
ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ
W побед.
Конечно, это глупый эмпирический эксперимент.Нет единого ответа, какое письмо является самым широким.Это зависит от шрифта.Таким образом, вам придется провести аналогичный эмпирический эксперимент, чтобы выяснить ответ для вашей среды.Но дело в том, что большинство шрифтов придерживаются одних и тех же соглашений, и заглавная буква W будет самой широкой.