Oh yeah he was absolutely the best.
"Some Like it Hot" is a crap example of his work. "Kissing Marilyn Munroe was like kissing Hitler" is a great quote and makes all of us blokes feel better.
See Curtis as The Boston Strangler where he is a consumately brilliant actor, completely transforming.
And what about the famous "snail" scene with Lawrence Olivier in Spartacus? A film so homosexually steamy that it was banned by the censor.
He was able to transform and had complete mastery of both the masculine and feminine aspects of his nature.
Only the cliquey snobbery of the Hollywood set deprived him of oscars, and it's the same prejudice that causes the public to believe them, and jump onto this bandwagon.
And what a wonderful man! Generous, compassionate, wise, funny.
To compare him to Pacino or to de Niro is to insult him. Only a child would suggest that they came anywhere near him.