As I listed above, I intend to have both hosts and students that are not hosts. Students that are not hosts do not have to go to the host club as a guest.
Well, dividing the m/f ratio is always hard to do since not everyone likes a simple straight male-female pair up and it leaves it rather dull for any exploration xD I figured people can make whatever gender/preference character and if there gets to be a huge unbalance, one would have to make a certain character.
Example being, if there are 6 straight women and 4 gay men and 2 straight men, I'd probably request that preferably they make male characters in which are straight or bi so that the women can find love interests o-o
Though if there were 6 bi women and 3 bi men, I might not request anything since they are a bit open to either, but could note that there are less males.