My guess is that none of these treatments are going to save the day. The virus grows in the cells that line the blood vessels and the cells that comprise the immune system. So A) there is a lot of virus spreading everywhere and B) the immune system is toast. I have no idea how people manage to fight it off.
Only a guess, but they may have been exposed to degraded fomites in the wild at some point and built some sort of resistance--if that would work.
The disease overwhelms the immune system
The doctor in Africa used AIDS suppression medication,since he had no access to other medications.
Ebola seems to have more severe reactions to 14 - 39 year olds, and the severity may be related increased immune sytems ( increased self-destruct system ?)
Best way to fight it off is: Quarantine, isolation, knowledge of the disease(how,where,)anti-viral controls (ie: water/bleach @10 partswater/1 part bleach), avoidance.
If contracted: analygesics, anti-Diarrhea medication, electrolite replacement, hydration , saline IV's, fever suppression, etc.