I honestly do not have a favorite kpop music video but I will put a few that are some of my favorites.

Hello By SHINee :) Cutest video :)

http://www.youtube.com/watch?v=skZxb5sBoiU&ob=av2e

Here I am by ZE:A

http://www.youtube.com/watch?v=tg918Ogclgs

Mirotic by TVXQ

http://www.youtube.com/watch?v=HtJS32n6LNQ

No Other by Super Junior

http://www.youtube.com/watch?v=SnMoDDbEccE