I don't get the versatility argument for the Monk.
The Monk is a skrimisher-striker. And that's it. It's versatile within that role but it only has that role.
A fighter can be an archer, a brute, a skrimisher, defender. or a tank.
A rogue can be a skrimisher, a brute, or an archer.
A bard can be a healer, leader, brute, skirmisher, blaster, controller, plus every version of a skill role from scout to face to sage.
The monk can only be a skrimisher unless it is a kensai. And then it's only opens up the archer role.