Nintendo fans are just cheerleaders. If they were all hot blondes, you’d like them better. They don’t usually shit on other games, so much as they just hype their own games up endlessly.
Sony fans are the worst. They shit on everything except their litter box and they’re really really fucking aggressive about it.
I don’t think the Microsoft stans have ever really given a shit about this stuff, so much as they’re mostly just dragged into it by the other two camps.