Interesting discussion. I plan to start posting videos both on dtube and on youtube in the near future (as soon as I manage to go trough the hassle of figuring out the filming setup), so hopefully I will be able to directly compare how the two platform stand against each other.

I believe that since the community on steemit is smaller, it's easier to get your video noticed. On youtube, unless you manage to go viral, or your videos are consistently hight quality (and sometimes not even then), or you already have a large audience to support you, you have little to no chance getting any views/money. But once you do become widely known on the platform, payout is likely to be higher on youtube than on dtube.