I don't really use more than one character, but I do use a shortcut that fairly easily bypasses the patcher and only requests your password.
Code:
cl_autoplay_world SERVERNAME; cl_autoplay_char CHARNAME; cl_username SOENAME
If you put the above into the Target field of an EverQuest2.exe shortcut(after EQ2's filename, not inside the quotation marks), it will launch the client, ask for your password and then bypass character select into who ever you typed above as server/character.