I think XBox players are set with their platform and out of the two camps (PS3 and XBox) my experience is that they XBox ones are the most vociferous towards Nintendo.
Ironic considering that roughly 10 years ago someone calculated that most original Xbox fans owned an N64 before switching to Xbox. I think from sales or something they reasoned that Xbox ended up taking more of a bite into Nintendo's hardware sales than Sony's hardware sales.