Ewing finished in the MVP Top 5 voting 6 times, but never higher than four. He had 1 First Team All-NBA. Never won a title. He was a better defender than Jokic, but never came higher than 5th in DPOY.
Jokić has 4 MVPs in addition to two other Top 5 finishes (4 and 2). He has 4 First Team All-NBA. He was the best player on a title team.
These two are not on the same level, and it's Jokić. He's also ahead of Robinson so far as I can tell. But I can see that being debatable because Robinson won an MVP, had multiple Top 5 finishes, won 2 DPOYs, and was a part of two title teams (though he was diminished in each, and Duncan was the star).