First off I like to say I am a big fan of the ocremixes and I check in every week for new songs. I especially love Megaman music and give an applause to all the re mixers of them.
There is one game series that I would really like to see represented here though, Boktai.
Personally I feel the series was great, but due to the solar senor gimmick it never caught on, at least not in the states.
I would love to see Hideo Kojima's vampire hunter classic for the GBA represented here.
If I could have any one track in particular, it would be the world theme in Boktai 2. It has the feel of a western adventure as well as an epic journey.