Canadian CPL or UK CPL have 2 diffrents requirments. For the 2nd one, you'll need ATPL theory while for the other you need just a CPL exam. Also, one gives previliges to work in canada while JAA-EASA CPL in the UK is to work in the UK or Europe with other requirments...where are you looking to be after completing your CPL's? you might go for the canadian CPL than convert it to JAA EASA