To be honest I can only judge from mid 80s onwards, so not point in me commenting on years before as I can only go on results, rather than circumstances.
Mclaren 88 - 15 of 16 races, but 2 brilliant drivers. Prost & Senna
Williams 92- Was just so much faster than the rest it was untrue. Mansell & Patrese.
Ferrari 02 - 15 of 17 races and it was so fast it was only Malaysia where Ferrari weren't ever in with a chance of winning. Monaco 2002 Schumi hounded Coulthard to the end and could have won.
MS & Rubens
Ferrari 04- Another dominant Ferrari & holds lap records still I think at alot of tracks and so could be the fastest car of all time. Even if not the most dominant ever. MS&Rubens
Red Bull 2011- Wow this was dominant in the hands of Seb, but maybe not to the same extent as others mentioned.
So those are my shortlist of 5. You could seperate them by absolute pace, dominance of a season or driver line up. (i.e a Seb & Webber dominant season could suggest a better car, than a Prost Senna dominant season?)
The 1992 Williams held lap records until towards the late 90s and the Ferrari 2004 hold a few to today. So those 2 suggest being the out and out fastest.
The most dominant in a season were Mclaren 1988 & Ferrari 2002.
So based on that I discount Red Bull 2011.
I think on balance of line up and season dominance rather than out & out pace. I will go for....
F2002.
