When I'm looking to stream videos in the United States, YouTube previously stood above the competition. YouTube's versatility is its greatest strength. You can watch a music video, podcast, movie trailer, game highlights, and stand-up specials all with a single click.
I haven't even touched on the millions of YouTube users who create content every day. I still use YouTube all the time, but I'm now using it less, specifically for music and podcasts, because of Spotify.