The men's top four were Lego, Game Boy, Transformers and Action Man, while the women put the Barbie doll first, with Lego, My Little Pony, Game Boy and Sindy also scoring highly.
Christian Robinson, managing director of gift website Firebox.com, which conducted the research, said: "We are not surprised Lego came top. It is timeless and popular with young and old, male and female."