He'd have to be. He said Tagoma had power comparable to his own and that wasn't including him as Super Saiyan and Tagoma beat the tar out of Piccolo so Gohan would too.Base Gohan isn't stronger than Piccolo.
They were shown to fight on par in the Universe 6 saga.
Also in the movie Frieza said Gohan could instantly wipe the whole army out in an instant if he wanted to as opposed to Piccolo and that was including Super Saiyan.
Well Zamasu is an odd one to figure out. He was beaten by SSJ2 Goku but then later on he said he didn't do as well as he could have because he was distracted which he clearly was.I can't ignore the fact that SS2 Goku beat Zamasu, and it's implied Zamasu is crazy strong
Then there's Future Zamasu who I can't see being significantly stronger than the present Zamasu if at all and he was able to keep up with SSJB Goku. Though again I did check and I'm sure across all his fights with Goku and Trunks he only got in like one or two hits in on his own.
I don't know if people are underestimating Present Zamasu and overestimating Future Zamasu. To me there's no difference in power worth noting.
In the manga he's clearly nowhere near as strong as SSJB Goku. In fact Goku quickly powered down to just Super Saiyan. That could imply that Zamasu was in between Base and Super Saiyan Goku which would make sense.



