Another knock on Dan Hardy is that, while he doesn't have wrestling, he also is not a great grappler.
Hardy owns four submissions in his career, including a guillotine choke in 2007 while in the regional circuit. He does have a purple belt in ju-jutsu, but at the level of MMA he is at, his submission grappling is not very good.
Furthermore, Hardy has been submitted four times in his career, including the retirement fight of Chris Lytle. His submission offense and defense is still somewhat green, despite avoiding submissions in his title fight against Georges St-Pierre.
Sadollah owns two submission wins in his six-win career. He has pretty decent submission skills, including an armbar win over C.B. Dollaway. His other submission is from elbows, but he achieved the tapout from outgrappling DaMarques Johnson.
Still, Sadollah earns the nod here.