As a French citizen, I'd like to object vigorously to the notion that Paris (if you mean Paris Charles de Gaulle, Paris' main airport) is one of the "better" airports.
If I believe wikipedia, Heathrow is actually Europe's busiest airport (CDG is next).
http://en.wikipedia.org/wiki/List_of_the_busiest_airports_in...
(CDG might be bigger for non-human traffic)