Mewtwo > Gyarados > Magikarp > Jumpman
First thing that runs through someones mind is that either magikarp or Jumpman are weakest. But that makes one think that others will chose it, so then they go for mewtwo but think how that logic is probabley common and everyone else thinks it too, so they go for the medium, Gyarados. So I'm voting for Mewtwo and you all should to!