its good to be evil
the minions in DK are all in all pretty fascinating, each with its own different set of attacks and personality. the "buildings" offered to you for construction also range from the basic (lairs, treasure room) to the outrageous (torture chambers, prisons).
what makes DK unique and extremely fun, is that it really makes you feel in total control of your dungeon. the way its ran, the training and living conditions of your creatures. even feeding them can put a little smile on your face. and the ability to attract and create those special minions adds to the fun factor and longevity of the game.
through it all, i'm pretty sure you will find something that makes it worth your while. be it a quick and swift raid of your opponents or the slow and deadly torture of them all, the evil side in you will surely be satisfied in every way possible.