paste is. the polished finish is the finest of the three (brushed, satin and polished).
it’s important to remember that no matter which finish you choose deep scratches can be difficult to get out. while you should always look after your sink and protect it, it’s important to accept that it will get scratched and picture which finish will look best for you.
many people choose a sink based on design over finish and remember that over time there will be a build up of micro-scratches through daily wear and tear will change the appearance of your sink but can also add character to your kitchen.
ultimately the final decision comes down to 