Here is a list of the Dracula films starring the four actors featured in the poll on the home page. Thought it might be handy to list them here. With links to the IMDB film site listings to boot!
Dracula (1930). Directed by Tod Browning. Starred Bela Lugosi. Trivia - Lugosi was paid £500 by Universal Studios per each week of the film's production; Lugosi's English was said to be negligible when the film was made.
The Return of the Vampire (1943). Directed by Lew Landers. Starred Bela Lugosi.
Dracula (1958). Directed by Terence Fisher. Screenplay by Jimmy Sangster. Starred Peter Cushing as Doctor Van Helsing and Christopher Lee as Count Dracula.
Others with Christopher Lee:
Dracula: Prince of Darkness (1966).
Dracula Has Risen from the Grave (1968).
Taste the Blood of Dracula (1969).
Scars of Dracula (1970).
Dracula AD 1972 (1972).
The Satanic Rites of Dracula (1973).
Nosferatu: Phantom der Nacht (1979). Starred Klaus Kinski.
Dracula (1979). Starred Frank Langella. Directed by Werner Herzog.

Hammer Horror Films
You've listed some great films here! My favorites are the old Hammer Horror films with Christopher Lee as Dracula and especially those which co-starred Peter Cushing as Van Helsing, beginning with Terence Fisher's Horror of Dracula.
Another great, but less-known Dracula film starring Christopher Lee is Bram Stoker's Count Dracula - aka El Conde Dracula - directed by Jess Franco. Klaus Kinski gives a great performance as Renfield.