One of my favorite Youtube personalities has to be Totalbiscuit from Cynicalbrit.com. His commentary is entertaining, funny, and cynical. Monday through Friday he puts out a show called Azeroth Daily which includes a ton of WoW related information and is a great way to spend 15 minutes of your day! He also does Starcraft 2 content, DC Universe Online content, and other miscellaneous game content. Check him out on youtube!