STL has the best trips in the entire RAH system. They are efficient, commutable, and very easy flying. Most STL FO's can swing 14-15 days off when they're junior and 17-19 when they're senior. It's where the majority of the commuters go...and because of that, the people that actually live in base get pretty good schedules since their are some really high time 1 and 2 day trips. If you were going to move to SDF, they have a variety of flying so it stays interesting, but enjoy starting at 5am on the first day and getting done at 11pm on the last day.