PHL has the fastest movement. CLT is by far the most senior. If you live there, within 90 minutes of the airport, or are going to move there, it's a great base. For everyone else, personally, I feel PHL offers the best mix of commutability combined with fast movement, even on the Airbus side.

Short call reserve is a commuters nightmare. You must be in base. Long call reserve is a decent alternative, you get a now 12 hour call-out (assuming that is in effect now?) so if you live on the east coast it means you are sitting reserve at home. You'll work more, but you'll get an extra day or two at home every week most likely. Sometimes more.