Board Thread:Questions and Answers/@comment-24546423-20180508121814/@comment-5486221-20180508122112

Alien X's powers depend on Serena and Bellicus agreeing, so I'd assume they would still have to debate. There's also the fact that Ben wouldn't need to do anything ever again if he didn't have to debate with the other two personalities, since his omnipotence would enable him to solve every problem that has ever existed.