the average player who does not creep vs the average player who does creep, would lose 9 times out of 10. and it really all depends on the races but i myself always played night elves and having the damage bonus with an army of archers backed up by an army of melee was devistating.
so what i think is that the player who creeps the fastest but does not rely on having an uber hero, is usually the winner. heroes just cost too much to replace so if they die 2-3 times usually youre gunna be losing that game.
now i wanna play wc3 ;D