I think the reason Swifty is so successful with making wow videos is because he plays a very common class, an arms warrior. He's also entertaining and has definatly helped me and who knows how many other people get better at the game. I was wondering if I did the same thing but with my Frost Mage, you guys think if I did daily bg live commentarys on a frost mage and arenas I could have a channel like his someday?

But he's has like 3 Youtube accounts and many many fans, so i don't know man

The main reason Swifty is popular is because his giveaways.
Try making videos and get as much help as possible. Add your own flavor to the videos. This TTTT bullshit will help you out quite a bit with views and subs.