Either Mercenary > Hero or Mage > Sage
The characters who have this class tend to have a personality like mine, and they're both balanced like I think I would be if I were a FE character.
That being said, since I don't like studying books, I suppose I would go with Mercenary > Hero, but since I prefer Bows/Lances over Axes, I could also be Ranger, but I don't know how to ride a horse xD so yeah.
My stats would be like average HP, good strength, good magic, good skill, average speed, good luck, bad defense and average resistance, and my CON like 8 (un-promoted) and 10 (Hero) which is the same as Raven I believe.