Open web OS vs Sailfish OS vs Firefox OS vs Tizen OS

Which is going to prevail? My vote would go to Open Web OS or Sailfish OS for the fan base they have already from the past.

Open Web OS

2011-08-08-teaser2_medium

via static.techspot.com

Sailfish OS

Fullscreen-2012-11-21-937-am_medium

via mobilesyrup.com


Firefox OS

B2g-home-screen_medium

via www.devworx.in

Tizen OS

05091_medium

via www.phones-online.org