How should the final battle occur?

Personally, I'd want Banner to be contained by military forces in which the Abomination breaks into the facility & this causes Banner to become angry in which he transforms into the Hulk. Then, the two begin to throw down in which instead of the military intervening,, the Hulk simply proceeds to beat the Abomination to death.

 

Uh, how about no.

 

If it's a lengthy battle it can't be too repetitive but then again, there's only so much you can do with two giant monsters.