Starting with the Titans concept - it's by far the better of the two, but I get more of a Mardi Gras/New Orleans vibe from it instead of LA or Greek Mythology. While the actors' mask is a subtle nod to the entertainment industry, I think its too much of a stretch to make that LA connection. To me, the name "Titans" evoke a sense of power and majesty and I feel it's lacking here.
For the Ghosts - I'm really not feeling this. Other than the uniform stripes (which I feel are really, really good), things seem way to forced. From the 'C G' on the eyes to the city sash, everything on the logo-side of the concept screams "thrown together at the last minute".