Java seems ideal as it will be completely cross platform and you can add / update the database drivers after the fact. Migrate has a different binary for each

Java seems ideal as it will be completely cross platform and you can add / update the database drivers after the fact. Migrate has a different binary for each platform and from what I can see, the support for each database is compiled in, so just to update a driver you are going to be maintaining that binary all over the place.