Oh goodness the Hoenn Music was seriously dire. It always scars my experience of those games. First Gen music was great fun and 4th was good, but I really can't wait for these remakes, because the 2nd Generation has brilliant music, and uses some of the best tracks from the first games! (I'm thinking of the Lance battle music being re-used for the battle vs. Red ;P)
The Hoenn music wasnt that bad, maybe I just got used to it from playing the game so much but I found it fine, but GSC did have amazing music so hopefully thats not spoilt.