Currently what is the highest Quality 3d printer filament?

In the market today and possibly in the future, what is the Highest Quality 3D Printer Filament being used today? Is the brand going to be different depending on business and home use?
Answer #1
http://3dprintingindustry.com/2013/05/24/ic3ds-campaign-for-higher-quality-3d-printing-filaments/
Answer #2
http://3dprintingindustry.com/2013/05/24/ic3ds-campaign-for-higher-quality-3d-printing-filaments/
it doesn’t really tell me what is the best quality filament brand is today.