Jokic is the analytics guys wet dream. However, Giannis and Embiid are better than him. Defense is still a big part of the game especially in the playoffs. Giannis and Embiid are elite 2-way players. Jokic is an elite offensive player. If the players were to rank the best defenders, Giannis and Embiid would be named near the top. I doubt Jokic would be in the top 100 regardless of what the stats say.
As far as offense goes, Giannis and Embiid had great offensive seasons too. Both Embiid (1st) and Giannis (3rd) have significantly higher usage than Jokic. I also saw on the NBA.com site a story showing the top 20 players who were double teamed the most. Giannis and Embiid were the top 2. Jokic wasn't in the top 20. Others already commented on Giannis, so I'll just comment on Embiid while acknowledging my bias. This season, Embiid was the 1st center to average 30 points since Malone in the early 80s. He had 13 40-point double doubles which is the most since McAdoo in the mid 70s.
As far as impact and winning goes, Embiid has made a huge difference for the Sixers since he stepped on the court. You can see the difference in the Sixers-Heat series with Embiid playing the last 2 games. You can see the difference in the Raptors series from a few years ago. Even though Embiid didn't have a great offensive series, Embiid's +/- difference was huge including game 7 when the Sixers were +10 in the 45 minutes when Embiid was on court and -12 when he was off court. Embiid has the best overall skill set of the three and Embiid is arguably the most overall skilled center to play the game.
Finally, I'll just note that all 3 are foreign born. Next season with Luka, the top 4 players could be foreign born and all but Embiid only played overseas until they were drafted and Embiid didn't start playing until he was 15.
