After I complete every project I do a few things:
1- Bounce all tracks to clips (so I don't have 10 little clips in one track)
2- Clearly name each track (if not already done)
3- Clean Audio folder (to keep 200MB projects from becoming 5GB's)
4- Drag/export each midi track to a custom made midi folder (this prevents midi loss incase of project corruption).
With all this done, you can now drag and drop these tracks to another platform. OMF files do not save midi content.
The above procedure saves the raw tracks. One can also export gain or volume automation for an easier set up in the new platform.