Most Productive Hardy and tasty here in my backyard:
Marseilles black vs
Malta Black
Tacoma Violett
Gino's fig
Atreano
Adriatic JH
Stella
Vista Mission
Sorry I do not have 10 old trees to compare for hardiness and production.
How do I know that Ronde de Bordeaux ,Nero 600m,Vasilika Sika,Improved Celeste,Stella,Col de Dame Grise and Black,Kathleen Black,are not very productive when they will be over 7 years old,at this point when they are in the forth and fifth year of life.
I do not know that so I can't state that they are not productive just because they do not produce a lots of fruits now.
All I know is that all these makes excellent fruits and so far are relative hardy.
Time will tell.
Top ten Hardiness:
All Etna type figs,+Florea ,Atreano,and most totally healthy figs that are totally free of visible,Fig mosaic virus ,earliest,to produce fruits: Mount Etna type figs again.
Youngest to produce tasty fruits:Mount Etna type figs
Mount Etna type figs are:Hardy Chicago,Black Portuguese,Marseilles black vs,Gino's fig,Tacoma Violett,Unknown #11,Jersey fig,Martini,Don Fortissi Black.