When I originally wrote phake I hand-rolled the command line option parser because PHP's getopt functions were useless and the only alternative was to pull in half of PEAR to get access to a better one. However, we're now living in the age of Composer/Packagist, and a cursory search showed there to be a number of independently maintained possible alternatives.

What are everyone's thoughts about switching to a more robust option parser? Does anybody have a preferred package?