Yeah....Obama was very, very good. Bill Clinton was definitely in that category and I think an argument could be made for either. Bill Clinton could make people feel like he was talking directly to them and understood their issues. Barack was an organizer and pushed hope and a better future. Different styles, but both very, very effective.
Right now, I think the person who may be in that league is Pete Buttigieg. The guy is so, so intelligent and consistently comes off as the grownup in the room. He's a very impressive orator. Being gay brings political baggage, but at some point, people just have to get over it. It's along the same lines as being female, black, or anything other than a straight, white guy.