Having used Facebook's Android app, I would probably count them out right off the bat. That app is complete junk -- it's slow, bloated, glitchy, and so greedy with permissions it makes a mockery of the whole system.
For example, I used to have a phone with only 1gb of internal storage, on which Facebook took over 200mb on its own (far more than basically any other app). It's pretty clear that whatever the devs are doing in regard to space usage, they're doing it incorrectly.