All these posts and nobody bothered to ask OP to define what he thinks "credibility" is...I'm guessing by his post he means somebody who is a certified goon, not somebody whose nice/paid their dues as a rapper...if we're using OP's criteria I gotta go with 50 cent, DMX, Gucci Mane, lil boosie, Maino, C Murder, Brotha Lynch Hung (or whoever is in jail for eating an infant or some crazy shyt), Trick Trick, Wu tang clan as a collective, Tru Life, Max B, Shyne, Bryant Gumble, Fat Joe, Young Jeezy, TI, Snoop, E 40, Too Short, Tony Yayo, Styles P...