Even if I bought Sentry hanging with Molecule Man was legit (I don't) but for arguments sake, let's say I did-
Superman showed enough striking power to one shot smash apart Soulfire Darkseid http://static.comicvine.com/uploads/original/11116/111162628/4459883-2197169-owned.jpg
(forcing him to regenerate) an amped version of Darkseid that was a match for The Source, the entity powering all of the super humans, Gods, and Higher Beings in The DC universe. In other instances-
COUNTER VIBRATION-(A) If Superman can match the natural vibrational frequency of the abstract form of Darkseid that was infecting the multiverse, or on another occasion a large, other reality, omniverse threatening, molecularly unstable planet, counter vibrate them, then wipe them out of existence...
...it defies logic that he can't do the same to a not nearly as large, 6 foot or so humanoid like Sentry.
Those beings are as formidable as Molecule Man, and Superman either showed the power to affect them, or even defeat them.
Not to mention-
BATTLE FIELD REMOVAL-(B) If all else fails, Kal can BFR Sentry into the Phantom Zone, or, while giving him planet smashing punishment on the way there, super speed rush him onto the Source Wall.
So clearly, using any number of techniques, Superman can defeat Sentry.
As for your other points-
The Sentry/Void is leagues above Superman, he effortlessly killed Loki with the Norm Stones.
As I just showed you above, Superman defeated multiverse threatening opponents; but to match a feat directly to Loki, Superman fought the Kryptonian God Cythonna. Here, he goes to the surface of the Sun for a few moments, and becomes powerful enough to match Cythonna blow for blow. The same Cythonna that was capable of matching the attacks of the Pre-Crisis Kryptonian criminals that Superman was forced to execute with her backhand.
A force field that didn't even get scratched from an enraged Terrax who with the same swing has destroyed planets is impressive.
It sure is. But didn't you see the number of force fields I displayed Superman breaking through without much effort in post 14?
Those are even more impressive.
The Sentry's TP is so OP he has subconsciously put his memories into the mind of the comic book writers.
When it comes to OP TP, there aren't much more OP telepaths than Martian Manhunter---and as shown in post 14, Superman has resisted him at least three times, and Superman has resisted other top tier TP's like Eradicator, Neron, and Braniac.
So Sentry using that tactic is not a sure thing to defeat Kal.
He's TP'd all Marvel Earth and the Inhumans on the Moon.
As mentioned before, J'onn has TP'd all of Earth three times, and subconsciously prevented his entire Martian race from entering the After Life.
Sentry's side effects with Photon energies casually destroyed planets while holding back.
As I showed several durability feats of Superman's above planetary, that is irrelevant.
Absorbing solar radiation makes him stronger so Supes will be fuel for him.
??? Solar energy is "fuel" to Superman as well, so what advantage is that supposed to be?
There's just no comparison to the Void, Supes is herald level at best, Void operates way higher.
The evidence I provided in posts 9 and 14 renders your assertions false; Superman is not just "comparable" to Sentry, but superior. Superman is stronger, has better striking power, and is more durable.