I put both on my boat.
My experience with wind generators compared with solar panels is that you get substantially more power out of solar panels than wind generators. Solar is much less expensive to install compared to wind generators.
The wind generator cost about $2000 for a fairly high end unity and gave me at best a trickle charger.
My solar panel cost me about $300 and gave me substantial, reliable output.
Both were rated at almost the same, the wind generator was rated at 400 amps and the solar panel at 380 amps. Even though in theory the wind generator should provide power 24 hours a day and the solar panel only during daylight hours, the output of the solar panel was notably better than the wind generator.
I would never spend the money on a wind generator again except under very defined usage:
A) If I were to sail into high latitudes and plan to do so during winter where there is no sunlight 24 hours a day for months, or if
B) I were to keep my boat in the trade wind regions.
In the first case, I would still have solar and I would then also have probably two wind generators. In the second case, I might put on solar and add on a wind generator. But I'd more likely put additional solar for the price difference and power output.
dj