What is the difference between:
Using the WP-Admin console to do an "All content" export of an existing Wordpress site and similar import on a fresh install of Wordpress on a different server, AND
Using the MySql export with schema and data on the existing site and a MySql import on the site hosting the fresh install of Wordpress?
And the motivation for this question really is, what is the best way to migrate a Wordpress site from an existing host machine to another host machine? What is the best practice for migrating all the plug-ins and their corresponding configuration? Assume that the target host and destination host both have the same version of Wordpress installed.