Drive to work if you can.
That said, probably not getting DCA out of new hire class. If you can, great. If not, there has to be a vacancy in order to transfer in to a different base, and you have to have the seniority to be awarded that vacancy.
DCA has not been "junior", but things change fast when things are moving and there are often some outlier junior preferences awarded.
That makes taking the 73/320 job in another base hoping for a quick move to where you actually want to be a gamble, and one that is entirely dependent on what everyine else does.
OTOH, if you are on the 190 when they get parked, and wait to get displaced, you can displace into a status where there is anyone junior to you with no seat lock.