I would go with the brushed nickel. I think you could have used the oil rubbed bronze, if you had lighter walls so it would stand out rather than disappear.

With a small room and deeper colors, I think that either polished chrome or polished nickel would look stunning. I couldn't find your exact combination on Houzz but here are a few rooms that might give you an idea...

[Modern Bathroom design[(https://www.houzz.com/photos/modern-bathroom-ideas-phbr1-bp~t_712~s_2105) by Toronto Design-build Schnarr Craftsmen Inc

[Traditional Bathroom design[(https://www.houzz.com/photos/traditional-bathroom-ideas-phbr1-bp~t_712~s_2107) by Other Metro Architect Christian Gladu Design

[Contemporary Bathroom design[(https://www.houzz.com/photos/contemporary-bathroom-ideas-phbr1-bp~t_712~s_2103) by Phoenix Interior Designer Chris Jovanelly Interior Design

I would do polished also. Sounds like your bath could use a little sparkle.

Can you post a picture? What's your light fixture? What's the vibe of the room?

I'd say brushed nickel or polished nickel. No oil rubbed bronze. If it gets a ton of use, brushed nickel will be easier to keep looking nice - polished nickel (while gorgeous, I have in 2 baths) shows spots quite easily but it's worth it if you're willing to wipe the handles frequently.