Headroom is a great thing. I am 6'3" and the Cal 31 has several places in the main cabin where I can stand up real straight and don't have to be in my stocking feet! The late 60's and early 70's Columbias were well known for their interior headroom but, IMO they are ugly and have WAY to much freeboard.
I don't have any good pictures of my boat, Imagination, readily available but I do have this nice photo from Sept. 2008 in Pelican Harbor on Santa Cruz Island. My boat is the one in the center.