@SkytheBlue Really lol? You call upon Old, Sick, Dying Whitebeard who's feats were already surpassed by Fujitora's meteorite to measure One Piece? Most of the Top Tiers are completely featless. One Piece doesn't even have a god Tier yet. There are plenty of statements that back up planet level One Piece characters: Whitebeard being able to destroy the world, Mihawk and Shank's duels that shook the Grand Line, Poseidon possessing the ability to sink the world into the ocean, etc. Don't you think that's already too many hints. I have a lot more proof but that would take too long so instead I'm going to the other HST verses.
Naruto verse used to be laughably weak. No one thought they would even reach Mountain level until Pain arc. Before, people used to bandwagon against them saying that anyone could solo Narutoverse. Until it's final arc. Now everyone acts like it was strong the whole time. They were super weak!
Now, Bleach. Bleach was stronger than Naruto was and it seemed to have more strength potential. However, we all thought that potential climaxed during the Aizen vs. Dangai Ichigo fight, in which only a few hills were destroyed. Of course, it's final arc changed that with the introduction of the Royal Guards and the Sternritter, especially Yhwach.
Now, Toriko. Until the Bubble fruit arc, Toriko always lost against the HST. People just considered it weak. And then the Four Beast showed up, and then you know the rest. It surpassed the HST by FAR.
Now, One Piece. One Piece has been crazy strong since the beginning. Luffy punching people to different islands, 20 million berry Arlong turning over all the buildings in a town, Crocodile drying the rain in Alabasta for years until his defeat brought it back, etc. Even Enel who was early on, was going to destroy an island, and he was a random villian! We also have the fact that One Piece even had a crossover with Toriko and DBZ. And you can't just say that it was for promotional purposes because if it was only for popular series, which Toriko wasn't at the time, then they would have used Naruto. So yeah, One Piece will have Planet lvl characters, I'm sure of it.
P.S. We're not even closed to being finished with the series and we already have Luffy at At Least High 6C. Naruto didn't reach that until the last arc.