So buy something you like!

Many manufacturer's use different drain assemblies, either plastic or metal. For example, these Coralais models from Kohler can be bought with one or the other:

https://www.kohler.com/en/products/bathroom-faucets/shop-bathroom-sink-faucets?Collections=Coralais

I suggest you shop for what you want on the MFR's web site (Kohler, Delta, Moen, etc. and not some alternate building hardware site) and find the exact P/N assembly/combo you desire. With the P/N in-hand, at this point I now shop the internet for price from pretty much anyone. I prefer the cast brass faucets from Kohler, but that is just my preference.

It gets good reviews. It's from a reliable manufacturer. It comes with Delta's limited lifetime warranty. You like the looks.

So quit stressing, buy it, and move on. :-)