Both are very good to use. But not everyone knows how Bitcoin works and that is the problem. I hope there will be more people that is going to use Bitcoin.
But they must know that it is good to use it and also very safe. It will be nice in the future. Because the world is getting more digital.
we can earn money with both of them, but in the web major earning sources support dollar, but now all earning source start accepting bitcoins also. So, prefer bitcoin more.