There are many hosts and homes available in the city...almost, 1,500.
AirBnB only posts app. 300, (15 pages) which means you have a small chance of being listed..no matter how highly you are rated. I would like to stay with AirBnB, but it seems they are forcing me out to other channels to get in front of people!!!
It all depends on where the algorithm places you in search rank. Some factors are known:
Price
Professional Photos
Instant Book
Flexible cancellation policy
Amenities
Popularity (recent bookings/reviews)
Good Reviews
Availability
Response Time
If you are in a saturated market, you will have to be even more competitive. This would be true on any platform, not just Airbnb. That said, platforms with less listings mean a "smaller pond" to compete with, but also fewer "fish" - smaller group of potential guests.