And now we have a third option. With that in mind, here's the skinny on your choices:
Gals are Superior - This is the default path. It has a variety of strong privileges: you get to just buy new uber gals, access to the shakeup to make freshly recruited hands better, or at least braver, and finally the option to put slave soliders in humiliating but potentially useful superhero costumes, culminating in comics-inspired flying power armor for gals. If you haven't won Piratez yet, this is the best choice.
We need Male Touch - This is the challenge path. Instead of hiring gals you get slave soldiers who are cheaper and have no morale decrease, but weaker stats than ubers overall. You can only get new uber through missions, so take good care of the gals you have. Comes with a few slave soldier centric perks, such as sergeant training to enhance improve slave soldiers of boss rank or above, trucks that can carry 12 people and protect your landing zone with a gatling gun turret and iron warrior training to further enhance strong and brave slave soldiers, at the cost of voodoo skill - leave witchcraft to the witches.
Peasant Revolution - An interesting choice. Strong early geoscape advantages, but no additional hiring options. Core features include some new mostly good random events that occasionally get you more recruits and loot, the revolutionary ceremony to improve freshly recruited peasants and slave soldiers, and two very strong features: The revolutionary HQ, a 3x3 building that offers affordable housing and training for a mass army, and the Harvester, which lets you transport a mass army into battle a bit faster than a convoy could. Probably the strongest path if you can keep your ubers alive throughout the early game.