Hmm, I'd be a massive ecological disaster if I ever had absolute power...I'd be all 'yes, I'm going to wipe out THIS species and THAT one and maybe the other one too, for good measure'. Can't stand creepy-crawlies or slither-slimies or...anything other than furry and cute lookin', really.

But um, your idea is better- less with the mass killing, more of a peaceful relocation...absolute power would be safer in your hands...