Attitude...that's the supreme turn off for me. I've only seen a few women that were totally ugly physically. The chunky ones usual have something attractive about them, general shape, legs, pretty face, eyes....I can deal with anything but a bitter, hate filled, ugly attitude....think Rosie O' for the ultimate in turn off.
...and any woman that would let Rosie O' between her legs must be down in the "Last Person on Earth" catergory..