Lobo

Lobo: The Universe most deadly bounty hunter

Vegeta:The Prince of All Sayians

WHO IS DEADLIEST!?

History
Lobo killed all the other Czarnians with a plague. (He claimed it was a science project and gave himself an 'A'). Since then he has traveled the galaxies collecting bounties. Lobo has a strict code of honor when it comes to these agreements. Along the way he has met and battled a number of superheroes.

Lobo played an important role in the Citadel War, in his capacity as a bounty hunter. He was hired by the Citadel's human agentHarry Hokum to capture the Euphorian known as Kalista in a bid to learn the secret behind her home world's planetary shield. Along with fellow bounty hunters Bedlam and Berserk, he raided the mothership belonging to the Omega Men where upon he engaged in combat with Kalista.[1]

Soon after, Harry Hokum hired Lobo once again, this time to assassinate the Omega Men's interim leader Tigorr. Lobo never had the opportunity to complete the contract however.[2]

After the Citadel War ended, Lobo was then hired by Kalista's husband Primus to help them infiltrate a Citadel prison facility and free several of Primus' captured allies. During the prison break, Lobo killed the supreme commander of the surviving Citadel military forces.[3]

Lobo eventually turned his back on his violent ways and became an archbishop in the First Celestial Church of the Triple Fish-God. He became a protector of sorts to a massive colony of refugees from Sector 3500. He also gained possession of theEmerald Eye of Ekron.

He happened to arrive in an asteroid field just in time to killDevilance, rescuing Animal Man, Adam Strange, and Starfire, who were stranded in space. Starfire negotiated a deal with him, in which he would help them out of their predicament if they helped him with his problems. After helping the heroes to defeatLady Styx, he brings the Emerald Eye to the triple-headed fish god, who agrees to release Lobo from his vow of non-violence in exchange. When told that the Emerald Eye is the only thing that can kill the fish god, Lobo blasts him with it.(From DC database)