have a harem of the baddest bytches on earth, and travel the cosmos, collecting a bunch of alien bytches on the way.
I wouldn't try to enslave earth cause if we in the DC universe theres about 500 heroes that would make it their life's goal to kill me, not to mention any good guy aliens that would come through and kill me. shyt, if superman tried to enslave earth Green lantern would have him locked up in space jail after asap.
edit- oh THIS earth. Yeah i'd consider enslaving but I prolly wouldn't do it