Myself, i only really
cuddle girls. Although with other straight guys there's a different ettiquette of intamacy as Jesus Pimp sorta pointed out. This is normally a handshake, arm around shoulder (even hugging), chest bump, knuckleduster, chest punch/tap, buttslap/other tap... etc
Although i have connotations of cuddling as in a bed/lying down/more intimate spot, which is very different to a traditional hug.
The only time i'd cuddle with another guy, is in a life/death situation, where you'd need to share body heat etc. Otherwise, not really interested.
That said, i do and actally quite often cuddle with a straight heterosexual male, although that's my cat
