Anyone who uses both Blogger and YouTube already appreciates the fact that Bloggers labels are an easy to use way to organize posts and that YouTube's playlists blow.
Blogger allows you to assign one or more labels to each post as you create it. For me YouTube is a tool so I am assigning this post the label 'Tools and Techniques". That took maybe 3 to 5 seconds.
On YouTube playlists management is not part, of or integrated with, document/video creation and management. You have to find the playlist tool, browse to each video, then copy the URL and paste it into a textbox.
Clearly YouTube needs to scrap the existing playlist tool and integrate it into the video manager and the editing screen presented when you upload vids.
Sorry Just had to vent.