Actually, the important things you must know are:
It doesn't matter if you are considred a pro, you can be defeated by a amateur that doesn't know any "tech moves".
Items can turn the game pretty quickly.
The game is not about just winning, just like Mario Kart.
The important is to make the other guys get pist for being beaten in a way the were not expecting.
An awsome game to play with friends.
pros do so much stuff, they would have to kill themselves all four times (pro is 4 stock, 9 mins). pros do so much they would slaughter amatuers 4-0 in all matches. mew2king uses mewto (worst character in us) against all unranked. he does this to mock them.
real matches dont use items, or allow stages with randomness (its a case by case thing, like the ships on corneria rnt random).
the game is about winning, but in some cases people dont care about winning. that is that person's choice, it doesn't change the game.
the randomness is still fun. after all these years the randomness still makes our matches fun.
edit:correct mew2king's name.
my pillars of gaming: kh, naughty dog, insomniac, ssb, gow, ff
i officially boycott boycotts. crap.