Composer all the way. :)
I think travis-ci still uses pear for phpunit. They will need to move to composer, or phar downloads.
It did not take you very long to be a convert ;)
Sounds reasonable to me. Got to think of a similar strategy for some of my projects. Sounds like the end of 2014 marks the end of the Age of PEAR.
@evert PHAR is the best distribution mechanism, IMHO, for tools. Initially I only offered Composer support because the community demanded it. Now I use Composer to manage PHPUnit's dependencies (during the PHAR build process, for instance).
+1 now I don't feel so bad for dumping pear support
PHAR + Composer should be enough to handle phpunit as a dependency of any project.
Frankly, this is a no-brainer.
Big for the move away from PEAR towards composer!