Official "James Bonds"

Daniel Craig
Pierce Brosnan
Timothy Dalton
Roger Moore
George Lazenby
Sean Connery

Unofficial "James Bonds" from 1967's Casino Royale
David Niven
and the decoy "James Bonds":
Ursula Andress
Woody Allen
Joanna Pettet
Terence Cooper
Daliah Levi

Personally I like Daniel Craig then Sean Connery.