Thanos Runs The Dragon Ball Gauntlet

Though tanking Thor's lightning is more current, tanking Surfer's blasts is a more weaker Thanos. His encounter with Odin isn't necessarily an outlier since Odin one shotted Surfer with ease, the same Surfer who tank planets exploding and supernovas. Yeah it went through the force field but Thanos was blasted himself (Thanos has casually brought them up against BRB for example). Even Galactus while near death blew up 3 star systems kek so SPC's Solar System statement would be inferior. Gohan needs to go all out to beat Thanos and can't be the little wuss that he was against Cell due to being afraid of the power within him. If Gohan was SSJ2, then yeah I'd definitely side with Gohan beating him. Not because of the raw power he has but his mindset is completely different though he did toy with his food.

Soaking up attacks from people like Thor or surfer is nice and all but they’re around planet level with their energy blasts. Which isn’t noteworthy, considering even round one has Freiza, an effortless planet buster in his first and weakest form. You can argue the Odin assault is outlier, and as for the Galactus instance? You can’t quantify it, what relative to Galactus is him exerting himself more than normal? Large planet level? Galaxy busting? Either way that’s with his force fields(forcefields which even champion has breached making it outlier), something that can only be activated if he isn’t blitzed. I imagine Gohan would be blitzing Thanos similar to those creatures from plan to eradicate the saiyans, Thanos can’t touch Gohan and would get blown away by a full power kamehameha(especially if you buy Cell’s statement of being solar system level).

Thanos is an energy sponge who has soaked up repeated energy blasts from characters like Thor's lightning, Surfer's blasts, an onslaught from Odin and a blast from Galactus that made Galactus exert himself when he penetrated his shield. If Gohan isn't going full force, I don't see him one shotting him or anything close to being this easy of a fight. This can provide Thanos an opportunity to launch on the offensive and take Gohan out

Only if Gohan is bloodlusted like in SSJ2 does he beat Thanos. Mostly like stops at SSJ3 Goku

Gohan drops him. I could make an argument for Thanos stopping earlier since he’d struggle to even perceive them(even at one) but at best he gets destroyed when he faces Cell Saga Gohan.