Actually, there used to be more good/neutral guilds than evil...but they either became inactive or were shut down (such as Abyss Knights and Gion\'s guild)...and not all people in evil guilds are evil (me, for example)
Their probably all about the same with the number of people but there just are more evil guilds at the moment (just look at the amount of people that have signed up for the boards, the evil guilds don\'t even have near that amount added together)