The incorporation of France is superior to that of Turkey. While technically Juggernaut has 1 more unit than Frankland, one must also remember that one of those units is inherently useless in the initial scramble. There are too many units in the south with 2 fleets, 2 (possibly 3) armies, and only 1 sea space to move into. The end up getting in each other's way, making deployment less than smooth.
This immediately gives the advantage to Frankland in terms of momentum.
The numerical advantage is also dulled pretty quickly. from the first set of builds, under maximized build circumstances (not accounting for taking enemy centers of course, just a neutral rush), they end up even. Frankland can get 6 builds, Juggernaut only 5. The only unit in position to attack (Warsaw), can be blocked by Berlin-Silesia. If Warsaw moves to Prussia, Silesia, can cover Berlin. If there is a bounce, both are unable to build. If War-Glc is played, Sil threatens Wrs, forcing a bounce or risk losing a home center early on.
Position wise, advantage also lies with Frankland. It has been noted before that when any of the center powers grow to sufficiently large size (G/I/A reaching around 11-13 centers), they have a higher probability of solo than the corner powers having the same amount of builds. This is typically because their central location allows them to bring troops to any point of the map much quicker than their counterparts, and forming stalemate lines against these powers are harder.
An analysis derive of this statistic still reveals Frankland is better. The center is already theirs, and it will be difficult to take. In the south, they have a faster land access to Italy, and are tied with the race for Tunis. In the north, they have a fleet potential that easily outstrips Russia 3 to 1. The only chance Russia really has in the north is taking Frankland off guard and rushing the german home centers, hoping that the defense makes mistakes. Frankland can afford to sit back and engage in a war of attrition they will win in most cases.