My favorite style is definitely the shaft stroke. My last g/f had nice long toes that she really wrapped around my shaft. She would stroke it between the second toe and big toe of one foot (usually her right). She had a great technique that she perfected in which she would grasp my shaft just below the rim of the head with her big toe and third toe, and then place her second toe on the tip. Then she would pull up and knead and squeeze the head with this grip until I came.
She's a yoga/pilates instructor and she loved giving footjobs because it was a flexibility workout for her toes. I took a beginner's yoga class and she was my instructor. Most of the nights I had a raging boner watching her toes curl and flex, but it turned out all right in the end
