Hi and welcome
I have a male and 2 females, all together and live very happily, males are friendly, infact probably more friendly then females, but its when you put boars together than you can get problems and they can fight with each other, but there isn't a better sex to have, the way the pig is, is down to the handling and attention it gets, it will get used to you and your smell and voice and if handled regularly will most likely enjoy being handled.
Piggies are herd animals so are best in pairs or groups (as i said above groups or even pairs of boars very rarely work) so a nuetuered male and a female(s) would be a lovely combination, they enjoy company of their own kind as they are very social and vocal animals so enjoy chuntering away to each other and will probably get lonly living on its own.
When boars fight or can smell a female then this is when they spray and smell, if you have 2 boys together and a female right next to them this will cause fights as they will be fightng over the female.
Females usually live happily together.
I am rambling here, but basically there isn't a better sex of pig. I';m sure someone else will be able to explan it clearer than me lol. Good luck.