I don't know if I have a single favorite. I want the Democrats to nominate someone who understands and respects the free market so that I can vote against Trump. I don't like Trump, but compared to some of the looney tunes the left is running like Warren, Booker, Sanders, and Harris, I'll vote for Trump as the lesser evil all day and all night. For all his bombast and self-promotion he hasn't actually done that much harm.
Biden would be adequate, but NOBODY is excited by Biden. From what little I know so far, Hickenlooper, Buttigieg and Klobuchar are pretty interesting.