1- yeah, does he have senses were he can sense your emotional state, difference in power levels, pinpoint your location with you energy signature or by using the air current? Because goku uses after images on people that are faster than him [Cell and frieza], people that have senses like him or even better [Piccolo and cell], and people that are him...but better in every way [Cell]. Tell me how can Godzilla answer the after image
2- there is a difference between knowing how to fight and being good at it. Goku is the person with skill alone can go toe to toe with people that are faster, stronger and more skilled than him, create martial arts techniques on the fly to counter other techniques, finds flaws in your techniques with just seeing them once, copying your technique with seeing them once, create techniques on the fly....goku's skill outclasses Godzilla's by a margin, also goku fought giants three times [Ozaru vegeta, Hirudegarn, and that giant dudd in T.O.P]. So yes in skill, goku would just absorb make fun of Godzilla.
3- Yes, goku outpaces people that are faster than him by using the after image technique. Is there a proper?
4- Goku fought and stalemated people with regen to the point they can regenerate their whole arms, legs, huge part of their bodies and even their entire body, goku can just use kamehameha to engulfe Godzilla and obliterate him, he doesn't have an answer for that. Goku fought someone that can absorb energy was doing just fine, minus the heart attack. Also what exactly can his recative evolution even do?