2. Earth Is Not Big Enough For The Hulk
Hulk is the strongest there is, as the big man likes to say himself. The problem is that puny Earth is not a strong enough backdrop to showcase it. To a certain degree,the Hulk suffers from the same problem as Superman on the big screen. That is, that if he were to really cut loose no adversary could really stand his ground against him. A direct result of this problem is that what we actually end up seeing in the cinema is a 'puny' Hulk. Even in the Avengers the Hulk is operating at less than half the destructive power he is capable of in the comics. That is why Superman is going to fight other Kryptonians (again) in Man of Steel, and why the Hulk is not able to fully Hulk out either. Simply put, there is nobody on Earth with the "cojones" to take these two on. No. Take the Hulk to Sakaar and have him take on the huge beasts of that planet and put him up against the impossible odds of the Gladiatorial games of that planet. Unfortunately, the Silver Surfer cannot appear as he is owned by Fox, but Marvel could let their imaginations go wild as to who the Hulk could face in his place. Show the public just what poor anger management skills can achieve and Marvel's strongest hero will shine.