Well, the other person has a wide range of options, that weren't posted when you wrote this. Looks like they're aiming for a duelist/assassin sort of character, a scholarly mage, or a gentle giant. However, the strong warrior is also going to have magic. So really we're pretty open.
Leon is best for savage, destructive roles, Juggernauts who want to do a lot of damage when/if they can actually hit something. They demolish the very ground they walk on, and even when using a bow can still gouge holes in whatever they shoot at. They're not really inclined toward a particular kind of magic, and the Rudhir's natural inclination is toward Leon and away from Enlight, which is responsible for all Cosmic or Mind based magics.
Eyrie is no less a fighter, but approaches it differently. Furies are extremely fast, to the point of bending the rules of reality. Usually, they are quite graceful, but sometimes they just charge in headfirst, sting the enemy, and rush away like a wasp. They're much better at hitting people accurately, but not the best at causing massive damage with one hit. Like Juggernauts, they are not directly connected to a particular type of magic, but their natural skill makes anything a good match for their martial arts. The Zeel's natural inclination is toward Eyrie and away from Nemesis, which is responsible for all Nature or Soul based magics.
Grand is neither powerful nor swift and skilled, but a bundle of health and great at resisting harm. The Atlas subclasses are most compatible with heavy armor, and their powers are useful utilities when sleeping, eating, or lifting heavy loads. Any time you are struck by poison or disease, it is Grand that will protect you. Grand is connected to the Body magic type, which includes things like amping up your physical stats, using your bones as weapons, spewing acid, and blood magic.
Enlight is a refined art, of analysis and keen perception, and breaking the rules of reality by sheer intellect. The powers of the Judge basic class allow you to grasp the enemy with your shadow, stride across difficult or hazardous terrain, and will yourself to take less damage from attacks. And that's not even with their magic. A non-magical Judge is a shrewd prosecutor or a talented martial artist, capable of disposing of enemies without fuss or mess. With magic, they are most inclined toward Cosmic powers like Time manipulation, teleportation, or Creation of material things, as well as the psychic powers of the Mind magic type.
Nemesis is an art of conflict, of balance between light and dark, and reading between the lines. The powers of the Sage basic class allow you to read information on an object just by touching it, shift your skin to appear like someone else, and ward off physical attacks through a sort of "Spidey-sense." These are also available to all Sages, not just the ones with magical training. A non-magical Sage is a Visionary of combat tactics, a powerful Monk, or a gentle Therapist. With magic, they are most inclined toward Nature powers like Earth, Water, Air, or Fire, as well as the esoteric powers of the Soul magic type.
And finally, we have Daimon, the most shadowy and deceptive of the six. The powers of the Aesthete basic class allow you to mesmerize others with your eyes, control the senses of others through skin contact, and blend into crowds as if you were not there. While Daimon is not directly connected to a type of magic, it is inherently defensive against the most pervasive, cruel forms of magic, like Acid, rapid aging, and tormentation of the mind and soul. If you play an Aesthete, you might be a mischievous Hellraiser or Scapegoat, a gentle and cunning Escort, or the warped and psychotic Daimon Jester, who turns their manipulative tactics and power over people into the most demented form of physical combat.
Beyond that, it's a matter of what you want to play, as a person, not just their stats and powers. When reading books or watching movies, who have you always wanted to be, if you could step into their shoes and look through their eyes?