Answer:
Age
The United States Constitution was ratified over 200 years ago in the year 1789 after the Constitutional Convention but the Florida Constitution was only adopted in the year 1968 which is less than 60 years ago.
Number of Versions.
The United States Constitution has never been replaced since it was adopted in 1789 and so has governed the United States for 200 years nonstop. The Florida Constitution however, has been changed 5 times with the current Constitution being the sixth.
Quantity.
The United States Constitution is a bit of a small document as far as constitutions go as it contains only 4,400 words. The Florida Constitution on the other hand, contains over 50,000 words which enables it to deal with far more complicated issues than the U.S. Constitution.