the thing i dislike about 'competitive' gaming is that it pushes people to win. Retarded point i know but, depending on the game, usually its just no fun watching people vying as if their life depended to win. There are always certain mechanisms which will make it easier to win a game, some little nack to give you an advantage
blah im making a mess of this but bear with me. Like with smash brothers on the cube, some people approach it just to enjoy, they hop around the level, try and explore new characters, attempt to vary their moves. Whenever i see people desperate to win they just revert to some kind of "tactic", some method of using what the game gives you in a way which promises efficiency if nothing else. Like to continue my example im sure at least some people know of "cheapachu" and how silly easy it is to stick to a small roster of powerful moves and finding a place to linger around which gives you the best advantage over anyone looking to curb your yellow ass
to summarise all that marblegargle its not as entertaining to watch (or participate in, in my experience) a game when people are just hell bent on "winning" instead of sharing an experience with people.
but i appreciate that same thing couldnt be said for like every game, and people arent necessarily jerks for being good at a game