1. history bounty manager
2. the amount of allocation for bounty (this is my opinion which is most important because I do not want to waste my time on bounty for low pay) if you can project your income from the bounty before joining.
if profitable join and if not leave
3. website that includes (encryption and whitepaper)
4. project development team
hope this helps and succeed!
In order to choose good bounty we make it sure that, that bounty we are able to choose is more on trusted to bounty hunters and can have good project and that project is successfully done.