I got to see a video of the Louis Jourdan version many years ago, and I'd love to see it again. The ending is the closest to the book ever filmed, I believe.
Apart from that, some of my other favorites:
The Lugosi Dracula--the first fifteen minutes or so show you everything you ever need to know about Gothic horror.
The Jack Palance Dracula; some wonderful moments.
I think of the Hammers my current favorite is the 1969 Taste the Blood of Dracula, because it's been so beautifully restored on DVD, and Anthony Corlan (aka Higgins) makes a lusciously beautiful hero; Ralph Bates has a wonderful bit in the beginning, as well.
I've been meaning to screen again the Lee version directed by Jesus Franco, El conde Dracula. I last saw it in the mid Seventies. Klaus Kinski's disturbing realism in the part of a viciously deranged Renfield stood out.
G.