I think pixies are great and a wedge but with the weight line cut with a curved look (shorter in the middle and a little longer on either side, not much, a half and inch or so) looks awesome. An exposed nape is a wonderful thing. If you do go that short, a natural hairline looks much better than when they clipper a straight hairline; after a week, you need to have your neck clippered again or it looks like crap.