Can you get a sample of each and see how you like it? Maybe you could buy some large cabinet knobs in each color and return them if you don’t have samples of each metal already.

My first thought was matte black might be dramatic unless it makes it drab, nickel is safe, brass could make it really interesting in a very specific way, chrome could look modern. But once you get the metal samples in there you will know. My inclination is to match what you’ve got in the rest of the house (door hardware, etc.), unless you want to make a statement in the bathroom.

Jane, thank you for the input. I should have posed my question a bit clearer. I need help with metal for lighting, faucets, etc. I'm looking for suggestions for the entire (overall) look of the bathroom. At first I was going with polished nickel, but the faucet I want to use (Delta/trinsic) does not come in polished nickel. The light fixtures I Iike only come in polished nickel and not chrome. It's just so frustrating. I thought I could do mixed metals, but unsure of that too. I read a number of folks say don't mix polished nickel and chrome. I was thinking matte black, but nervous. My husband won't go for brass (after posing my above question), though I agree, it would be interesting. Thank you again, and if you have any other thoughts, I'd greatly appreciate them. The double vanity is 80" (white), there will be a free standing tub (white), with separate shower in white subway tiles, the quartz counter tops are a medium gray, dark slate floors, and lastly white walls. It's so hard for me to use my imagination and picture different metals in the space.

Delta faucets usually come in brushed stainless which is like satin nickel. You might be able to mix that with polished nickel, especially if you do it repetitively. Black might be ok too depending on where you put them. Google “black and white bathroom” and view images to see if there is any inspiration out there.

We love the matte black fixtures trend! Black is easy to keep clean, and pairs well with any accent color. Check out our top 10 ways to add black to your bathroom.