1985-2007: Almost strictly UA. 1P for most of the early 2000s.
2007-2010: CO. Mainly Plat.
2010-2013: UA again, due to merger. Plat/1K.
2013: DL. Did status match to Plat, due to better routings and wifi. Also, without having US part of *A, UA became fairly worthless for me.