Honestly, I very much doubt that Cliffs of Dover would have made the top 100 even if it was the best sim ever made. In its current state it has few good points as a sim and none as a game. If we look at Rise of Flight it had a troubled start but after two years it has almost reached classic status (only the poor AI are holding it back IMHO). It was expensive at over $200 for the base game and every addon released but after two years it is finally worth it.

Cliffs of Dover was and still is in a worse state than RoF was on release. Right now I can't even be bothered to load it up but I will certainly support it financially by purchasing any addons when (if) released. Hopefully in two years it will have pulled of a Rise of Flight type pheonix from the flames, but right now we should not kid ourselves that it is somehow deserving of any right to belong in any gaming top 100.