Several new FOs in my EWR crashpad live in DC. They sit long call from home. Only came up if assigned Shortcall. Several have bid up to 76T in DC. If you want time at home and good trips/seniority/QOL, I say 73. Once DC vacancies open up, you can bid up to 76T or when the 737 DC base opens, rumored this Fall, you could possibly move down there. Also, as the walls come down on the shrinking 76T fleet, seniority will go backwards, buddy in my pad who is EWR 75/76 lost quite a bit of seniority in last 6 months.

From what I can tell, 76T trips are usually commutable, but you will fly a ton. 73 reserve will afford you more time at home sitting LC.