Broly

This is what I know. Goku trained Uub back to his previous self's power. In the beginning of GT, when Uub's training was complete, [and in completion that means he's back to his former power] both he and base Goku were fight evenly [with Goku having the slight advantage]. So Goku [base; GT] is > than Chibi Buu. Goku states that Rilldo is about as powerful as Chibi Buu, BUT, Trunks butts in and tell Goku he is giving Rilldo too much credit, thus explaining why Base Goku was able to handle Rilldo with such ease until Rilldo transformed and merged with his lame sigma squad. So, Base Rilldo is < than Chibi Buu.

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