[KilikOdagawa]

Bagis are more simple to use, my opinion is the easiest.

They have one weapon type
They don't have to worry about party health
They can stand in front of an enemy for a good while and take hits.

I would suggest Bagi for a starting character.
Then Segnale
Then Incar Magician
Then Azure Knight
Then Segita Hunter
Then Vicious Summoner

Segnales have one weapon type but they have the added weight of party welfare.

Incars have two weapon types, but equal range with no specific weapon requirements. (You can use stave and wand to cast all spells)

Knights have multiple weapon types, but only one range. Close up. What you do with that is your decision. Skills are dependent on weapon type.

Hunters have three, dagger and Bow/Crossbow. You have to adjust your range depending on the situation. Skills depend on the weapon type.

Summoners have two weapon types. Staff and Twin Blade. Skills are dependent on the weapon type and the multiple builds are rather confusing. This is the only class where you control two units at the same time. Good luck.