Probly ones such as exploading elmo death(extreamlly funny),fred videos,cat flushing the toilet,chimpanzee riding on a segway,stick figures on crack series,random celebritys that have become famous,metallica and other bands i like, and much more.
My fav. Youtube vid is anything involving Warriors, epic stick figure battels (like from stuff from Momoko, or the vid ghost fight), random vids from colledge humor, HALO vids, or music videos from Linkin Park and Metallica.
Dark woods circus, the fan animation, it's so beutiful and sad! :'( By the way, it's in japanese I know! XD And it was origanally sang by female and two male vocaliods!