I never got to see Cook play, but everyone says he was a generational talent before he got injured. Hopefully the Bengals are about to get another generational talent in Burrow.
EDIT: Just watched that video. What a shame...
And I agree about Kenny Anderson. He was an intelligent game manager but nothing special, talent-wise. He was even benched for a while in favor of Jack Thompson. He sure could take a beating though, that's for sure. Not HoF material though. I always thought Esiason was better, although he had a much shorter career.
If I'm ranking Bengals QBs, it has to be
Palmer
Esiason
Anderson
Dalton
a big what-if with Cook
Blake
...and then a whole bunch of mediocre.