Which type of currency is better for paying employees? Is it Bitcoin or Fiat? Do you think we'll be able to see more jobs paying Bitcoin in the future? Or will Fiat still dominate the jobs industry? Is working for Bitcoin just like working "under the table"? Your input will be greatly appreciated. Thanks. 
The only way that I see from this happening is when the world accepts bitcoin as a form of 'legal tender' which can be paid as salary to the employees.
Currently in the Philippines, any form of money that is NOT considered legal tender cannot be paid as a form of salary. Thus, only fiat or cheques are allowed by law. But, if the employee consents to the company, then the latter has the discretion to do so. Personally, I would choose (if possible) to have my salary paid in 70% fiat and 30% in BTC so I could utilize it as a form of investment.