I consider myself 'old school' - maybe because I'm just old - but I do think the 'new school' of quarterbacking certainly adds another level of excitement to the game ...
And I think you might be right, chas, about the running qb's getting beat up during the course of the season, similar to a running back ...
Fran T was a great ' scrambler' but he wasn't a ' running qb', except for his life ...

On a different note, I don't think any athlete in any sport could be deemed the 'greatest of all time' because the rules, conditions, and technology in every sport has changed so much ...