Figure I'll throw my hat in.
I liked the redo of this. Not the best vocalist, but it's very soothing for me:
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I liked the Dissidia version of "Fierce Battle". Man, I remember the first time I heard this theme in FF6 and was like "..Oh. Shit", especially since I'd read that book in the game that mentions it. The way it opens is nice.
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Annd..while the newer FF games sometimes get hate, I do like the battle themes from XIII-2.
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Can't find the other theme, sadly.