In what order did you kill the gangs?

[SophieModan]

I started with the Samedi, stopped because I couldn't beat the Bonding Experience mission.
I decided to beat the Ronin and the Brotherhood and now I still need to finish this stupid mission

Use the annihilator

 

[SaintsBruv]

I always start doing the first quests of every gang at the same time. At some point I just continue doing the Brotherhood ones until I kill the gang, then The Sons of Samedi and lastly the Ronin, the most annoying gang IMO.

 

[TheMIXer]

The Ronin, The Sons of Samedi, The Brotherhood. I did go a bit back and forth with the first two and didn't touch the Brotherhood before finishing the others.