Your problem with Hulk's victories lies mostly in your failure to grasp that hulk is not "merely a brick", he has always been something far more - and more mysterious.
For one thing, he's always been able to grab and rip energy - pure energy, gamma radiation, Sentry's glowing aura and more. This has allowed him to do things like suspend himself in the air and pummel away at Sentry or rip forcefields with his hands.
Another major problem is that you seriously underestimate Hulk's durability and healing factor. If he just stood there and took punishment without reply, Quasar would die of exhaustion long before Hulk's HF began to wane.
This is a character that tore through Nightmare in his own realm, that fought without respite in Hell and has shown a glimpse of what he can do when unrestrained in HOTM.