There's a recent thread on this very subject, you should use the search engine. Audioauricle's first sentence is the consensus, I believe. The key is having a good front end, as the WP is far more revealing of flaws ahead of it than the Sophia. On the other hand, if you don't really care about getting all that detail and don't want to have to spend a fortune on front-end equipment and amps, the Sophia would be a better choice, then you could pocket the extra money and enjoy your music as well.
