Youtube's is actually pretty surprisingly good, in my experience. After years of use, it consistently filters out all the absolute trash I don't want to see, and recommends me things I do actually want. It's not perfect, but it often directs me to channels I wouldn't have heard of otherwise that have solid content.

It often finds a video I would like and throws it on my front page. I avoid it for awhile thinking it wouldn't be a good fit (I don't recognize the creator, bad thumbnail/title, unclear why the content would be of interest to me, etc) but find it was great and I should have watched it days ago.

If I log out of my account, the front page of the site is just awful, makes me want to throw up.