Isn't every Arc a who's who of top class race horses of that day?
The only question mark I'd have over Sea Bird, is the fact they lied about how far he won by. The record books say 6 lengths, but if you watch the replay it's knowhere near that
1) No it isn't, 1965 was one of the very best Arc fields of all time. Very few Arc fields have compared with it since. You are just guessing.
2) Rubbish, no one lied about anything. Sea Bird II hung badly left, probably due to the atrocious conditions on that particular day. A mistake was made on the final winning distance, but to say people lied about it is nonsense. You probably read too many Dick Francis novels?
As I said, I have unfortunately lost the full details of each and every runner in the 1965 Arc, but here's a bit from Wikipedia. I believe there were about 16 runners in the field, which also included many other big race winners apart from those shown here:
"1965: three-year-old season:
As a three-year-old, Sea-Bird won all five starts, starting with a three-length win in the
Prix Greffulhe. He next appeared in the
Prix Lupin, which he won by six lengths from
Diatome.
In the
Epsom Derby, Sea-Bird started at the 7/4 favourite in a field of twenty two. There was an incident the night before the race in which police and security staff repelled a gang which had attempted to enter the stable of the
2000 Guineas winner Niksar.
[13] Before the race, Sea-Bird was described as looking "plain and high". He raced on the outside behind the leaders until the turn into the straight and then moved up to take the lead on the bridle with Glennon sitting "still as a statue".
[14] Sea-Bird won effortlessly by two lengths, never coming off the bit, from
Meadow Court, who went on to win the
Irish Derby and the
King George VI and Queen Elizabeth Stakes, with I Say in third.
[15] In July, Sea-Bird ran in the
Grand Prix de Saint-Cloud, which he won, easing down, by two and a half lengths from Couroucou.
[16] He was then rested until the autumn.
In the Prix de l'Arc de Triomphe, Sea-Bird faced a very strong field, including Irish Derby winner Meadow Court, Preakness winner Tom Rolfe, French Derby (Prix du Jockey Club) winner Reliance, Prix de Diane winner Blabla and Russian Derby winner Anilin. Starting at odds of 6/5, Sea Bird won easily despite veering across the track, with jockey Pat Glennon patting him down the neck in the final 100 yards, by six lengths (though photographs of the finish show it to have been closer to four and a half lengths) from Reliance. Five lengths further back in third place was Diatome (though photographs show it to have been closer to four lengths), who went on to win the Washington, D.C. International. Fourth place went to Free Ride, fifth was Anilin and sixth was Tom Rolfe."