i guess nobody in this thread has ever played a DMC game or ever read anything about dante and vergil. they're much stronger than naruto and sasuke.
they both have regeneration that sh*ts on the kyuubi, they're physical strength and base speeds outmatch naruto and sasuke except when naruto is in RSM and sasuke using his teleport jutsu but thats limited and we don't even know if naruto can still use RSM.
both of their sword play stomps sasuke's. and if they were to transform it wouldn't even really be a fight. naruto going kyuubi and sasuke using PS would only make the fight shorter as both dante and vergil are used to and excel at taking down big opponents