Nintendo fans are easily the worst by a long shot. No contest.
In all seriousness I think it's the culture of Nintendo that tends to make the fans a bit nicer. Nintendo culture values fun, quality, and connectivity while the others are more geared towards competition and power. There's obviously many exceptions but I just feel a culture of competition and one-upsmanship doesn't generally create a friendly and relaxed environment, where the goal is to win and beat others and prove yourself as opposed to just playing and enjoying yourself.
"Graphics is Power" - Nintendo Miyamoto.
https://www.youtube.com/user/xJusteBx







