The Last.fm blog announces that the service has added Video Charts, and also points us to the NORMALISER (batshit insane caps MINE!), an app that re-orders your top artist by total time listened to, instead of number of tracks heard.
So one 24-minute Godspeed You! Black Emperor tune has as much weight here as a dozen 2-minute Usher tracks.
My top 10 has no real surprises UNTIL you get to Godspeed You! Black Emperor (Gs!BE), which is my #48 top artist by track, but #9 by time spent.
(Is there any way Earl Boykins could make this look super cool?)