The latest "what if" bid had ORD and DTW as the most junior. The most junior New hire is ORD. Since there is a bid every month and new hires come in behind you, by the time you finish IOE you will get your choice. No need to worry as a NH. DFW seems to be the most senior on this latest bid for FO's and DFW is going to new hires just completing IOE now.