I believe that 50% SSJ Goku is > USSJ2 Trunks. It’s been so long since I debated this particular subject that you can take my opinion with a grain of salt, however.
Apparently One Piece rips off a lot of real life counterparts too. A Fairy Tail fan on TMF made so many accurate comparisons to One Piece characters and real life people when Fairy Tail was being criticized for being too similar to One Piece at the time.