Centaur

Centaurs are excellent frontline warriors capable of both dishing out damage and tanking it thanks to their high HP, strength and Charge ability.

Good mobility in the plains biome, especially in straight lines.

The Bad anatomy trait is they're biggest flaws, making them quite vulnerable against seduction type enemies.

Combat
Their high mobility coupled with the charge ability makes them the Kings/Queens of the plains, allowing them to get into fights, strike hard and fleeing rather quickly, as long as they have the clearance for it.

Due to the Bad anatomy trait they can get "Lust locked" really easily, as such a second line character is recommended to support them with healing and intercourse to allow them to function during lengthy engagements.

Overworld
The Land mount ability gives them the option to carry smaller party members, reducing the time needed to traverse a land hex.

Their high strength makes them good pack mules to carry inventory items around.

Breeding
Their high virility makes them good "studs", easily able to impregnate a partner, creating multiple eggs in one go, this is counterbalanced by their low fertility, making it quite challenging to get impregnated themself.

Moneymaking
Their very high sperm production coupled with their average milk production makes them quite lucrative in the milking business, especially if specifically bred for the purpose.

An average beauty allows them to be put to work in the brothel in a pinch, but there are more lucrative options.