The "list commands" screen: displays first line of the command description in a comment style, then shows the command with its options on a single line.
The help screen for individual commands: displays the full description, a Usage section with the command and its options, then a secetion for each of it sections.
The help screen for individual commands, but this time with "verbose" option, hence displaying also the "global" options (the ones provided with the framework, such as no interraction, no debug, etc).
When there's a lot of options, the Usage section gets split over multiple lines, with backslashes, so it's easy to copy paste, then change the values and finally execute it.
I don't know what it is about the #Symfony Console component, but I just love customising my app's help screens with it.