ColossusGrundy
Zatanna's body pillow
Ways Hulk could possibly beat Hal Jordan:
1. Physical slugfest
2. Thunderclap
that's it. and that's ONLY if some moron wrote Hal stupid enough to trade blows with Hulk or not evade a thunderclap.
Ways Hal could beat Hulk:
1. BFR into space
2. BFR into the sun
3. BFR into a warp (which Lanterns all can make instantaneously)
BTW all 3 of these would be faster than Hulk could react. He'd maybe get a "Hulk sm..." out, but I doubt it.
4. Continual bashing from afar (The rings have a range like everything)
That doesn't mean a single construct. Hundreds of attacks simultaneously is the way to go.
5. Draining of the gamma radiation that powers Hulk (similar to how Hal siphoned the Shark's radiation and de-evolved him and the way he manipulated Dr. Polaris' own magnetism)
6. Continual attacks - never let Hulk get his balance or oriented. Hulk hasn't fought anyone successfully who could surround him him with attacks that keep his body flying in different directions. Hal could do this constantly for hours.
7. Probing attack - such as a small beam entering the nostrils or ear canal that surrounded and froze the brain... instant KO and would also probably revert Hulk to Banner.
8. A ring that can split and sever atoms wouldn't have a lot of problem dispersing Hulk atom by atom (as Hal did in GL special #2).
9. Internal Atomic Bomb. Between the teeth, over the tongue, look out stomach, here it comes.
10. Vertigo - even without touching him, would put hulk on his ass. (Doom did it to grey Hulk, who had to lay there until Doom was done speaking).
This is just a sampling of what Hal could do to Hulk. None of these are as sinister as we all know Hal can be. Could write these all day.
Hal is faster, much more versatile, and very much able to be a vicious jerk when needed.
I haven't even begun to mention Flash > Thor.
Team Flash/GL wins.