Super-Saiyan 2 Gohan (Cell Saga, KHH) vs Super-Saiyan 3 Goku (Boo Saga)

[Void]

I mean Gohan was just exhausted after the KHH whereas Vegeta outright turned to stone...

I don't think they're close to each other. Just seeing how they compare, boy.

 

[GSM123]

Put it on a scale
Gohan Kamehameha - ??
Mr. Boo - 350
Grey Boo - 550
Fat Boo - 900
SS3 Goku - 1,000
Jihad Vegeta - ??

Ignoring those for the sake of my own scale

Cell 720
Gohan 800
Sad Gohan 320
Motivated Gohan 640
Gohan's Kamehameha 960
Cell's Kamehameha 960
Majin Vegeta 900
Fat man 3,000
Majin Vegeta's Jihad 2,700
Goku 3,600
Good Buu 1,200
Evil Buu 1,800

 

[withheldforprivacy]

SSJ2 Kid Gohan: 90
SSJ2 Kid Gohan's KHH: 450
SSJ2 Goku: 100
SSJ3 Goku: 175-500 (depending on how you view Buu Saga)

So, depending on what's your take on Buu Saga, Goku can block it with high diff or get crushed.