Interesting to see London getting all the attention of this thread. Economically and demographically speaking, both Paris and London have about the same weight in the EU. However, Paris is totally forgotten here.
This tends to prove how Paris got distanced in the recent years. Paris is passionately hated by French people, and more and more ignored by the rest of the world.
On the other side, London is loved and promoted by everyone in the UK, and it catched the attention of the rest of the world as the economical capital of the EU. This trend is probably fueled by the image of London as a flourishing city. And this perceived prosperity of London could be explained by the fact it's a financial capital in a global economy more and more dominated by the financial sector. We could also add the fact it's an English speaking city, which makes it a lot more accessible to the rest of the world.
Overall, Paris should really reconsider itself. Paris should stop thinking itself at a national level and assumes itself at the global level. No matter if we like it or not, Paris is the undisputable capital of the French speaking world. It's not just a French city anymore. Furthermore, the old limited adminstrative borders of the city gives a very restricted image of what is "Paris" (an old and dirty city center which doesn't evolve), I think Parisians should really call fastly for the creation of a Greater Paris which would clearly help the city to eventually deal with its own problem at the right scale.