<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by rlaakso:
With regard to upgrading on the rest of CO's system, come 2004, CO will be far superior to DL. </font>
For a primarily domestic flyer, it already is.
For a 60/40 or above international flyer both CO and DL absolutely stink compared to AA (CO stinking far more so than DL so if you are top-tier elite, international flyer.)