It is a very simple question, but it has been bothering me for quite some time: when creating an application, should the help menu (in the menu bar) be called "?" or "Help"?
I can see a few advantages for "?": it leaves some room to associate the character "H" to another menu (with Alt) and is quite easy to recognize. But I think there may be some other pros and cons in this choice.
What do you think?

NOTE: Some of the answers discuss about internationalization and shortcuts, thus about how ? may not exist in some languages. Since I am French, I will use that language as an example (sorry if you prefere your examples in Chinese). For the same reason, feel free to edit any mistake you find in my English.
Alt+Hworks in English is also what we could have wanted for "History".Alt+Amay work in French but we often see it for "Affichage" instead.- The "Help" shortcut often has priority any other other menu that begins with the same letter. That means that the other menus shortcuts may change from one language to another even though the words are roughly the same (for example, "Historique" will be
Alt+Hin French while "History" will beAlt+iin English). - Moreover, the locale half of the software I use is in English and the other half is in French, which may lead to some problems when I switch - more often than one would think -. When software uses
?, I don't really have to think about the language anymore.
However, as said, Alt shortcuts are often secondary and thus these points do not invalidate what was already said in the answers.
NOTE 2: For the sake of completeness, we could also add the answer we simply don't care since it is a "positional" menu (always the last in the menu bar) and, generally speaking, users will know where to find it without even having to ask.
NOTE 3: One last point which not appear in the answers but appeared in some comments, and I think it is interesting to have it highlighted here. Alt+Shift+/ may be quite long to type, but one generally does not care since the key F1 should be a shorcut to open the hemp (even though it sometimes opens the "About" dialog).





alt+shift+/(as/has ? as it's shift key). Whereas for menus with 'Help' as an option I need only pressaltandH. That's a 33% efficiency saving! – JonW Apr 11 '13 at 08:57/-?is indeed always a shift key. You have a good point! – Morwenn Apr 11 '13 at 11:45¿?– Izkata Apr 11 '13 at 15:39F1. – zzzzBov Apr 11 '13 at 16:23ed... – Kaz Apr 11 '13 at 18:14F1as the quick-access to help anyway. – fluffy Apr 11 '13 at 21:03