Join Date: May 2007
Location: variously: PVG, SFO, LHR
Programs: AA ExPlat, UA 1MM Gold, Hyatt Glob, Marriott Plat, IHG Plat, HH Gold
Posts: 1,678
Keep in mind that as of March pilots from pmUA and pmCO can freely fly any 737. After the beginning of March the only way to tell which side the pilot came from on the 737 is to ask them (and many may be mixed pilot crews).
FAs will remain separate and can be determined by noting the tail number, as JOSECONLSCREW28 noted in the OP.