Nah, Len. The best sideburns actually have to go to '69 John. Check out the Let It Be rooftop concert. When John's hair is blowing in the wind, you get a great shot of his long hairy chops.
Chris, I agree that Olivia is probably the toughest. She stood up for her man, and yes, gave that punk the beat down. But I think if I could go back to 1964, I'd want to take Jane Asher out. However, I do agree with you about Astrid. Artsy chick, seemed to be adventerous, right up my alley.