TheCaptain
what
Celt Saxon
said in a nutshell.
Enclave started out as literally that - an enclave of Mandos that survived the Sith purge on Mandalore that wanted to rebuild - start again. Eventually it settled on Kestri in Wild Space and settled a new mando state there, seeing as Mandalore was nuked to high heaven for a long while. From there, Enclave evolved from a more Western feel to a true militant mando state. There's a looot of history there, so not gonna dig all that up now. Summarised, Enclave is not only Bounty Hunters, but Super Commandos as well. It's still there, we just don't have a cloud anymore like Celt said.
The Protectors, after the fall of the Empire that held Mandalore after they kicked out the Sith from that space, decided to re-establish a mando state on Mandalore. For more info on them, I'll tag
Mia Monroe
to give you a more detailed description on the Protectors.
Like Celt said, both are awesome and both are chilling. It all depends on your character - if they are both anti Sith and anti Jedi, Enclave would be a better fit, cause atm, Protectors are kinda buddies with the Jedi. If you like Jedi and wanna fight Sith only, then Protectors are the better fit - in summary. If you like Sith, then
Khamul Kryze
would like your number and both Enclave and Protectors would have your guts for garters.
All are fun - you can even enjoy both, seeing as we're not at war with each other.