Ok so you saying naruto,sasuke and juubito fight reminds you of
goku,vegeta vs kid buu...?
how? if you pay attention you'll know juubito is not just fighting naruto and sasuke he's fighting everyone, and kicking everyone's ass's accept for madara.
naruto and sasuke aren't fusing together or using energy blasts or anything their fighting with their comrades that "ACTUALLY!" do something. kid buu is a ball of pink bubble gum, who couldn't even defeat an injured goku & vegeta after fusion. kid buu suppose to be the strongest buu *Cough* but couldn't win?? wow fat beat ssj3 goku and he survived vegeta ultimate attack, and this is fat buu so how couldn't kid buu just blow em up like everyone likes to say in the dbz world.