The ONLY way that Strom can defeat Hulk, is they way I described previously.
Please, DO NOT think that I am a fan of Storm. And, no, she is NOT more powerful than Mags, or a huge bunch of other characters. She is just, Storm.
But, she also happens to have the powers to do what I said she could do. And, her powers just happen to be the kind of powers that would negate the Hulk.
Another character that could easily beat Hulk, is Graviton. And, then you have Vance Astro, Sandman, etc.