Unfortunately, there’s a very ugly side to this debate. If you’ve actively been on either side of it, then you might hold the opinion that there is no pretty side to the debate, but in a relative sense, there is. The pretty side is about vertical alignment issues, low resolution displays, and the trauma of floats gone wrong. The ugly side is, without question, the unholiest member of the family that is CSS-supporting (however loosely the term need be applied) browsers: IE 6.