In my vert the only one I care about is the driver side door handle. I just cannot get my left leg/foot in a comfortable position since the inner rocker hogs up so much space on the floor . So I usually ride with my knee leaned on the door panel & my foot flat on the floor . I think that handle is about 11 or 12 o'clock.
On my 67 I like handle not to high but as I call it "a natural grab" position. And seeing older car pics, that how they were. Just high enough so leg doesn't hit it.
Oh and in same position required if you have a Deluxe door panel.