Either one or two mirrors could work. Suggest getting fixtures with plenty of light -- usually 3-4 bulbs is good, and match the finish on your hardware.

Below are a few bathrooms we designed for clients. It might help you to make a decision by looking at them.

Malibu Condo · More Info

Master Bathroom and Closet Suite · More Info

South Tampa Waterfront Custom Home · More Info

Either option of mirrors works. Its just a personal preference. Light fixture wise, you can have the finish match your faucets or if you want to mix metal finishes, you can totally do that. Here are some examples. See below,

Currently we are loving and using often the two mirrors that tilt. Few finish options to pick from. You can find them at PB and shades of light. Add alittle shiplap behind them and you have a fun space!