I believe that Box 5 was the best spot, so he could watch Christine performing on her best. And Christine should pick Erik (The Phantom) over Raoul because he may be ugly and a murderder, but he did teach Christine to sing better and еще convidencer. And he does Любовь her еще than Raoul does (In my opinion) . And she feels pity about the Phantom's past, and even he did gave her blindly trust and she did broke his heart. But somehow they do Любовь each other very much, I don't know if Ты are agree with me. And what the other people say and/or think about my answer. But this is how I would describe it. And I will Присоединиться your club. :-)
I think.. He chose box five at first at random, but it became his. It was one of the few things he had to claim, and he insisted on it, because it was comfortable for him and he was used to it. Christine should have gone with the Phantom because he needed her more. Raul could have gotten any girl in the world, he had everything he had always wanted, but Erik? He didn't have anything, not even box 5, at times. He couldnt have had anyone, and he loved Christine, taught her, loved her, and he died for her. It wasn't his fault that he murdered people, he didnt know any better. Nobody ever loved him enough to teach him.
In terms of the movie, I have no idea why he decided on box 5, или how he even knew about box 5 really, I guess one night he discovered it was the best view или the best box to conceal himself in или something.. I mean obviously in the book he designs the opera house, and probably designed that box for him to have the best view yet be concealed, but that is not the case in the movie, so I don't know..
And in terms of going with the Phantom. I have a very long winded explanation which I will not bore Ты with.. She does Любовь them both, and in the movie, it is different to all the other versions because it's 10 years and not just a few months.. They both offer her very different things, I mean the Phantom will blackmail her into prima donna and continue to help her progress in her Музыка career, yet Raoul will give her the typical life, a family and all that. I mean, of course, the Phantom has a hard time getting a girl, for obvious reasons and he had Christine and Raoul could have had anyone and all that, but really I think Christine loved Raoul еще and Erik did go the wrong way about getting her in the first place and then scared her half to death.. So I don't really know the answer to that.