yo u guys should definately do melee first
alot of people from nyc/LI (including gordon) are going to philly for melee so the event will be smaller, plus 2 ppl already dropped out, and it makes more sense doing the MAIN EVENT (brawl) after the side events (melee).
plus melee will take like an hour-ish, brawl will take like the whole night regardless of when you start it, and if you start melee early you have more tvs to work with since a few people will leave or not play melee after the tourney is over so you wont have to kick ppl off tvs