What a great opportunity.
I also really like the first and I actually thing it is more effective than if the bar had been central as, at the moment, the asymmetry allows one to see the door in the distance in the whole and that creates the illusion that there might actually be two paths here.
The next has a super Sci-Fi look to it and I might even be tempted to bring the exposure down even more to create a more mysterious feel. Tidy cabling is always rather alluring I think. Not too sure about the rack labelling one though.
I like all of the shots of the tower, but I agree with Chris that the first is the most striking composition.