Is it possible to prioritize files to transfer using Google Drive, or with one of its competitors such as AeroFS or Dropbox? I'd like to be able to choose which files and folders to synchonize first, so that each of the files and folders are synchronized in a specific order.
Google Drive does not currently have this feature, but Sugarsync has a feature where you can select certain files to be high priority and uploaded before others. At times, it is not as convenient as it should be, but it does work.
Put simply, no. It has been asked a few times on the Google Product Forums but no word yet on whether it will be introduced as a feature.
Closest to priority is to sync only the folders where you have the files that need to be prioritized.