Which Picoliter printhead right for me?

Liter of waters we drink and still thristy ..
However picoliter of inks dropping out different size of picoliter of printheads still demanding on.
Which printhead right for me ,is question that may answer which application you need?

1.80pl printheads such as Xaar,Spectra: For low quality ,Fastest Billboard printing

2.35pl printheads such as Seiko,Xaar,Konica,Spectra polaris: Good quality and fast printing such as Flex printing mostly.

3.14-15pl printheads: Konica Minolta,Spectra polaris: Eco solvent use indoor quality mostly print on Self Adhesive Vinyls and banners.Speed is slower.

4.4-12 picoliters: Finest photoquality printouts may have Ricoh,Epson or Toshiba TEC printheads with water based or ecosolvent or biosolvent inks. Mostly realistic photoquality printouts. Speed is slowest of the range.

For all the ranges best inks manufacturers are:
1.INX Digital (www.triangleinx.com)
2.Stetjet Digital Inks (www.stetjet.com)
3.Nazdar Lyson Inks (www.nazdar.com)
4.Bordeoux Inks (www.c-m-y-k.com)

Decision is yours....