@ShakeResounding So both of them have equal skill here if we're going by those feats, so neither characters have an advantage here whatsoever.
deflecting/reflecting will be nothing to kratos with his golden fleece, plus even if Kratos needs to get through the forcefield to attack Sonic, he can literall spawn portals underneath him to strike through the portals. Yeah Kratos can do the same thing with the golden fleece since it can do just that right back at Sonic and keep playing the reflect game. BFR'ing isn't really relevant to the debate here since that's not really what Kratos needs to do, he just needs to hit Sonic once and he's done, plus given he lacks any form of power null resistance any of Hades' arms is enough to nullify the barriers on contact so Sonic's exposed to any of kratos' hits. None of this sounds like Sonic has an advantage here compared to kratos, again this boils down to being inconclusive.