Virality isn't luck. It's not magic. And it's not random. There's a science behind why people talk and share. A recipe. A formula, even.
As far as from a standpoint of success, the only person who is in a position to make a claim like that sort [for the 'King Of The South' title] would be Lil Wayne - as far as success from a numbers standpoint. As far as longevity and success, that's the only person I feel like can say that.