When ripping songs on youtube always use the etreme quality setting.
Hashtag the artist and look at the artist page of playlists for complete albums.
Since I like both the video and the MP3 I rip both. The mp3s are good for my truck and the videos on my home entertainment system.
Things I use:
Ant Video Downloader with the Youtube plug-in
DVDVideoSoft Suite (Video to Mp3 converter)
WMP with Tag Plus
I write in all missing information and go to the artist home page for album artwork