User blog comment:B214/Shin DxD 1 discussion/@comment-29890029-20180724003457/@comment-28884330-20180728180054

You are ignoring just how strong the power of immortality is, and how it can tire out even stronger opponents. Not to say that (according to the Chinese translation) Unknown Dictator can control metal machines including other Sacred Gears, so if Vidar uses his armor which is based after the Sacred Gear system or his boots he can potentially be turned against his own team by Unknown Dictator’s possessor.

Your fanboyism over Dulio’s team is making you ignore several key things that have already been explained to you, such that Vali’s team and Dulio’s already know of their respective abilities because the matches of any team can be watched both live and in recordings. Dulio’s team has no particularly rich reason to fight Vali’s, and those things you mentioned about Dulio fighting Crom and partial DxD Issei are irrelevant. What do they even have to do with facing Vali? Meanwhile, Tobio’s team vs Vali’s carries a lot of emotional value with it and is a far closer and more interesting match on paper because of Tobio’s team being stronger and more dangerous than Dulio’s, not to say the publicity value for Slash Dog that this would carry and you choose to ignore.