What is Maplestory most popular class?

Throughout the years, Nexon may not realize that they are not not geniuses, but insane ones. They have recently been making classes like Demon Slayer where you can literally FLY in. or Mercedes when you have rapid-fire at level 30. So you can usually be assuming that the newest release is going to be the best. Phantom is coming soon, I think. Don't know what it is, but that sounds awesome! (when more updates are made to Maplestory can someone please update this?)