Which one is better? In terms of the product. Not as employers.
Personally I prefer Redfin. Maybe try using them and decide for yourself?
Always always preferred Redfin. I used them for both buying a selling. Never found any real use for Zillow other than looking in areas where Redfin doesn’t operate.
For what? For work? Zillow is making the big tech investments. As a site honestly Redfin is just more streamlined.