To be honest, I found the official explanation on the bitbar.biz site rather... lacking. Can anyone tell me why the hell this is special?
From a technicals perspective: POS + POW, wasn't premined like Novacoin, continuously adjusting stake/difficulty.
From a psychological perspective (just as important): Novel "bar" concept, ultra rare, will be the first "coin" to hit the exchanges with a value per unit greater than 1 BTC (someone correct me if I'm wrong with this). I think that alone will get people's attention.
In short, this offers something new on both fronts that FTC and CNC didn't offer.