First thing I thought about when I read the thread title was....no just no. JBJ by all means is a threat to anyone, and very few people would deny his potential and accomplishments, but JDS is the baddest man on the planet. There is no one atm that I would take against JDS, not JBJ or even Silva. Of course IMO Silva is p4p #1, but size and power advantage would be too much.
JDS would knock out JBJ without a doubt, at least this point in their careers. Like Psycho said, I don't think JDS has lost a single round since he's been in the UFC and has demolished every fighter he's been in their with. Who knows what happens in five years or so, JBJ will only get better, but now is not the time for this discussion because lets be real here.
"Let them see that their words can cut you, and you'll never be free of the mockery. If they want to give you a name, take it, make it your own. Then they can't hurt you with it anymore." - Tyrion Lannister