*From those eras, who would be better?*
I’d say Stabler, Namath, Staubach. Both Stabler and Staubach replaced good qb’s that didn’t have the it factor(Lamonica/Merideth). Namath had great form. Bradshaw only had to not screw up like McMahon for the Bears in ‘85.
IMVHO Excluding Unitas as too early-
I’d go with Tarkenton and Fouts.
They both excelled in 4Q comebacks which implies less game planning and more on the QB’s shoulders.
Yes, it was not the pass-first era we are in now. Stouter defenses and strong ground games dominated. Gabriel's Rams team were good, they just happened to be in the same era when the Packers dominated.