Can I request a female Uber driver? (I'm female and would feel more safe)
The Guru Take
Not with Uber, but there are companies out there.
There are more and more services out there that are designed for women, where you can specifically request female drivers.
RideGuru's recent article by Felicia covers this concept
Here's a forum thread on SeeJaneGo and Others
UPDATE (2018-01-08): See Jane Go has announced they are ceasing operations as of 1/8/2018 due to financial problems.