[SkyBelow]

For starters, generally the view is that free will either exists or doesn't exist with free will being the concept that we have some control over our actions.

Compare this to God, where you have plenty of religions, many with their own distinction God, some with many, some with concepts that may or may not quite count as God. Even with just Christianity, you have God, but then you have the Father, the Son, and the Holy Spirit which makes up God. With some belief systems you have spirits which are kinda like a god but kinda not and with other systems you have demigods which are part human.

So with free will, you options are:

    Option | Free Will
    1      | N
    2      | Y

With gods, you options are

    Option | God | Trinity | Allah | Shiva | Zeus | Thor | ...
    1      | N   | N       | N     | N...
    2      | Y   | N       | N     | N...
    3      | N   | Y       | N     | N...
    ...

And that isn't even counting the difference within a given religion. It is like comparing the cardinality of boolean options with the cardinality of the reals.