I think I'll buck the trend and say that while this song is good, it still doesn't top Little Sister for me. I still find that one superior to the other pieces because it's less referential, and works better as an isolated piece of music than a retreading of the game's plot beats in melodic form. I haven't played Burial at Sea, but even after playing Infinite I couldn't get all super jazzed up with structure of Dream of the Sky. Also, Little Sister had a certain ambiance created by the pulling in and out of the base, an effect that simulated waves, that I have yet to hear in a similar analogy to wind in these other songs (or actually, in most of the your other work, it's kind of unique that way).
Anyway, keep up the songs, Gav!