SOme of them rock, though due to the large number there are many horrible ones out there.

There is an awsome one of Cowboy Bepob to Feel Good Inc by Gorrilaz. Also ones to 19/2000 soulchild mix, one to 99 red baloons, and a bohemian rhapsody one.

Then there are the AMV Hells, number three was one hour, six minutes, and most of it was genius, especially the Fusion of Titanic and the End of Evangelion.

Though then there is the atrocity of every one to a LostProphets song I've heard. I love Lost Prophets, but I've never seen a really good video to their songs.