How high do you rate 150lbs Griffith decking & dethroning ATG 36 year old Weight Drained Dick Tiger?

I can't see any possible result of a Monzon-Tiger match other than Monzon W15,...but you're saying Tiger over Monzon P4P?
Do you also see Tiger over Hagler P4P as well?

 

I think these ringsiders were more partial to Tiger stylistically (preferring the slugger to the boxer)...they were probably showering Griffith with invective about not standng still and accommodating Tiger and for other reasons denoting Tiger's popularity in general IMHO.Tiger was vastly more popular with the fans as well as the "cognoscenti". I'll never forget the Griffith-Tiger rematch, when Emile must have won close to every round in Tiger's last fight...it must have been a late round, maybe 9 or 10 when a Bronxish sounding ringsider bellowed out "Griffith, you stink"...
I agree with you re your remark about the scoring...it was so close and had a little something for everybody...but as for me, again, minus the 5th round, I saw it like you did...6-5-3, or maybe 8-6 thereabouts.
Tiger not only went down once, but almost went down again, as EG, after the ref waved them in, brushed aside a shot by Tiger and almost decked him again.

 

This fight was, IMHO, a very big deal, albeit, an unheralded big deal for Griffith for a couple of reasons...one...thia was champions used to do it...Griffith jumped from welter all the way to middle, with a deficit of 10 lbs going on, and boxed beautifully, for the most part,...at times looking like the stronger man as he muscled Tiger...and of course, it was a "yin and yang" thing as usual for EG as he once again, nearly drove poor Gil Clancy loco by lapsing into one of his well known mid-fight trances...lost his focus and allowed Tiger back into the fight (until the last couple of rounds)....as I said, this was the way real champions used to do it,...without this silly "catchweight" crap that the punks of today indulge in.
Another thing, is that Tiger was the "original ironman",...i.e.,...he was the Hagler of his day...rather, Hagler was the Tiger of his day. Sure Tiger was decked...first by Griffith, put to sleep by Foster...and floored twice by Frankie DePaula,...and yes, we know that Hagler was never decked. HOWEVER....Tiger suffered his first knockdown at the age of 37 (in '66), being born in 1929...whereas Hagler was born in 1954, and retired in 1987 at the age of 33. So Tiger had resisted any trips to the deck all the way up to age 37, until Griffith landed that short, hard right hand in round 9.
All in all, it was a splendid triumph for one of the most underrated, underplayed brilliant fighters of his, or any other day.

 

bump

 

Before the fight Joey Archer was running his mouth that he deserved the title shot and Griffith offered to give up the title shot and fight Archer instead with the winner fighting Tiger. Archer turned it down so Griffith fought Tiger anyway, but it shows the type of champion Emile was

 

I don't have any great degree of confidence in this answer, but Benvenuti was at his very best in 1965 and like you say, Tiger was struggling to make 160, so if I had to place a bet I would go with Nino by a close decision. Tiger had trouble with elite-level boxers. He wasn't particularly versatile style-wise. Nino had slipped quite a bit by 1969. Tiger too maybe, but this was offset somewhat by his extra strength at 166.