Beneath the Surface, Lost Not Forgotten, The Shattered Fortress and Hollow Years.
All the matchups are close atm, just 1-2 votes between them. Also, for what it's worth, I'd like there to be a 2016 season with this format. Overall it's been very interesting to follow, and it'd be a shame if we didn't give the newly-promoted songs a chance to compete in their new divisions next year.