As full time or part-time bounty hunters identifying best bounties are very important since there is a tendency of increasing scam ICO''s now. Here I am giving some attention to following factors when choosing good bounties.
1. Rating- If the ICO has some rating. If this rating is good or high it is a indication that this is a good ICO.
2. Managers of the bounty- some managers has good reputation such as Amazix , Kripital etc.
3. The team behind the team -IF the team is strong and capable with good track record it is a indication that the bounty and ICO will succeed.
These are the main points come into my mind.
Managers isn't impotant item for me, one manager may manage good projects as well as bad, Amazix also had bad projects which didn't pay. One more important item for me is how many tokens are allocated.