RE: Adjudicator. For me at least, I really appreciate the personality of the boss theme as it relates to the boss’ design. But I also really like Demon’s Souls and am not a huge fan of FFXIII so I may be biased on that particular match-up.
This day 4 bracket is a tough one though. Specifically match-up #4. The Four Fiends boss theme is one of my favorite FF boss themes, but the DS version is my least favorite version of it. And Final Battle is decent in its own right if a bit limited in scope, plus the original GameBoy sound chip is one of my favorites.
(Also I’m even the one who suggested FFIX Battle 2 but I think I actually prefer the SMT IV boss theme, unfortunately for me.)