Kid buu vs juggernaut who whould win and why?

It really depends on which version we're talking about. If we're talking fully powered Juggernaut it is a stand still. Unless Juggernaut can get his hands on Kid Buu there is no way either can do anything to the other to win.

Juggernaut is powered by a being called Cyttorak who has mystical power beyond comprehension. Kid Buu isn't strong enough to hurt or kill or even knock out a fully powered Juggernaut. Juggernaut can survive without food, water, or oxygen and can survive the vacuum of space. He can easily survive a planet being destroyed.

If Kid Buu can beat Superman, why can't he beat Juggernaut? There's your answer. Kid Buu wins.

Buu he has godly powers and infinite ki. So he could make super wanishing ball that would destroy half of the reality so Juggernaut is overpowered

well lets see

Kid Buu destroys planets while Juggernaut ..well..he cant do that..

More details needed