saneman, you've been reading my mail, brother. I loved Airtran. Sure it had a few bumps here and there but for the most part the biz class was better than "good" and I considered the airline to be a good deal, in general. Now that it slowly declines into ruin, I have started using both the airlines you mention. Delta does seem easier to fly (but I hate their website). Also easy to upgrade on Delta whereas sometimes it is tricky with US Air. And US Air you have to keep giving up miles for each "segment" of upgrade. Just a little more annoying...