Interestingly in 2008 Hillary Clinton won the popular vote to be the Democratic Nominee but did not become the Nominee. The Democrats criticize the EC, but also don't mind using a form of it internally.
Super delegates have never decided a Democratic primary, and Obama got more votes in 2008 (the official tally excludes Washington, Michigan, and Florida, who went for Obama but didnt publish vote tallies)
The delegate system is proportional, not winner-take-all, it is utterly unlike the electoral college.
https://en.wikipedia.org/wiki/2008_Democratic_Party_presiden...