Uber has a maximum driver count in most cities. In many places if you get below a 5 from multiple riders, you get cut. In Seattle, this meant a lot of them switched to Lyft exclusively after Uber dropped them. Lyft drivers in Seattle were terrible. One didn't stop for an ambulance. Another cut off several cars in an intersection.

I still prefer Lyft and haven't had big problems in other cities. But it's worth mentioning.