The best from bounties for sure are signature campaigns - the ones with big bounty budget and with little number of participants.
before I joined signature bounty campaigns because I am a junior member at that time, a friend of mine earned higher amount of money through Central under Sylon.
Sylon has the most higher bounty payer in my personal experiences because Oyster Pearl PRL also is under Sylon's bounty management that's why I am following Sylon's bounty campaigns until today.