Children of the Watch or Death Watch.

Death Watch, There is so many months if not years of history in the clone wars alone about Death Watch. And plus if it is power you seek you can become a Mandalorian Super Commando or stay loyal to Death Watch. Plus I just like blue and red mandalorians.

Imperial Super Commandos.

Deathwatch love there lore

I guess the Children of the Watch, but if they were called the Mauldalorians I'd join immediately and get executed within 2 hours

Children of the Watch would be my first choice to join

I'd rather be a mandalorian mercenary. All of these factions have serious issues. XD

^yea I would rather not join any of them lol

None of the Canon factions. I'd join the Mandalorian Protectors