As far as sponsors go, most YouTubers fail to make paid content look organic. They fail to create a look that doesn't scream, "I was paid a lot for this, so deal with it!" Not Jack from JacksFilms, though, he knows what he's doing.
Two of my awesomely talented friends Jack from JacksFilms and Mike Diva battle using dubstep to win over a girl in 'Dubstep Solves Everything 3'.