This is not an drupal 6 to 7 upgrade question, at least not in the way it's conventionally asked or done. I have an ill pressflow 6.17 site with loads of not necessary modules, configurations, etc, which I need to convert to Drupal 7 (Pressflow 7 doesn't seem to be round the corner as work on Drupal 8 has just started) so this will be a new site with its own set of modules and configurations but with the same data as the old site. I don't want anything from the Pressflow site to creep into the Drupal 7 site except for content; I don't want the views, imagecache presets, etc. I am looking to get advice on just moving the data (content) from Pressflow to Drupal 7 site; therefore, the usual upgrade process will not work for me.
I have used the migrate module before for an ASP to Drupal migration and it works great, but it's also kind of messy with source tables residing in the same database, and since task at hand is to move data from one Drupal version to another I am hoping for a much simpler/quicker technique.
What would be the best/quickest way to move content and only content (including ratings, comments) from Drupal/Pressflow 6 to Drupal 7 site (except migrate and table wizard, not that they don't fit the bill).
[UPDATE] - I am currently investigating nate's approach when he migrated his site from drupal 5 to 7. It might work for me; I will update.