ATL has everything but MD-90 (777, 767-400, 767 Intl, 767/757 dom, 737-800 and MD-88)
NYC (EWR, JFK, LGA) has 767 Intl, 737-800 and MD-88
CVG has 767/757 dom, MD-88
SLC has 767/757 dom, 737-800 and MD90/88
LAX (LAX, ONT, BUR, LGB) has 767-400, 767/757 dom
Most junior base is NYC on the MD-88, however we actually had 18 NYC 767 Intl FO slots go unfilled on the last bid so it could end up being the most junior. LAX 767 dom is very junior along with the ATL MD-88. Most new hires go to the MD-88 NYC or ATL and I believe one went to the 737-800 NYC.