Delta is the number one rated airline in the world.
Route planning can be weird. For example, This past weekend I flew home on SWA. The final route was Denver to Salt Lake City, and then the plane was going to Chicago. That meant that the Chicago people spent an hour getting to SLC, sat there for an hour, and then flew another hour, right past Denver, to get to Chicago. Three hours to pass over exactly where they had been to begin with. Bizarre.
