Sentry still wins. And it's hilarious how insecure the DC fans feel about the Blonde Bombshells fiercesome and awesome power.
"Uhuhuhubuhuhuhuhu, Sentry beats my favorite character, so I have to pull off every single trick in the book to depower him and have mah boi Hal come out on top ;_;"
In the end of the day, Sentry is an immortal reality warper, who defeated the Molecule Man, someone, whose fights was felt across different dimensions and timelines. Sentry is a guy, who destroys planets, while holding back.
Show me Superman destroying a planet, while holding back and I will straight up and legit send you money via PayPal. Nah, all you can do is, show me a scan of Superman getting the living shit knocked out of him after colliding with a moon. Meanwhile Sentry destroys moons with one punch. And Blue Marvel, someone less powerful than Sentry, almost splits moons in half by throwing a necklace at them. Also, didn't Superman at one point say that the only being capable of destroying a planet was Darkseid? Meanwhile in Marvel you have low heralds like Terrax destroyings planets just like that. LOOOOL!
If the Sentry appeared in the DC Universe, he would immediately become the Alpha and the Omega. Terrax would be a major book-crossing event boss. Embrace the truth.
Seriously, is there ANYTHING, Hal can do to prevent the Sentry from killing him? His shields are not going to protect him. Dooms shields couldn't protect him from the Sentry, while they were able to protect him from the Beyonder, who KOed Galactus.
It's an losing battle for Hal Jordan. He would offer someone like the Silver Surfer a good fight, but someone like the Sentry rolls over him. Thor at his peak would beat Hal Jordan as well. Thor hurts multiversal level beings like the Chaos King with his lightning. Hal gets fried.