1. Ilyana (Tellius FE): Originally, I read a walkthrough that said Ilyana was going to be the most available character in RD, so I started using her regularly in my playthrough. It's tough not to grow attached to someone with a bored looking expression and who is always hungry.
2. Canas (Elibe FE): Monocle is close enough to glasses and glasses are ♥. Also, dark magic is awesome.
3. Lleu (Ray; Elibe FE): Dark magic user. Can actually function adequately unlike the other one in the game.
4. Saul (Elibe FE): It isn't written anywhere in the church's laws that he can't give his "sermons" to women at night. D:
5. Heather (Tellius FE): Hooray for implied lesbianism!
6. Haar (Tellius FE): Zzz...
7. Danved (Tellius FE): This guy's just plain funny.
8. Nino (Elibe FE): Amazing magic skill contained in a little girl's body? Doesn't hurt that you might be related to 2 and 3.
9. Aran (Tellius FE): Oh, Aran. You have absolutely no personality! XD
10. Makalov (Tellius FE): You drink, gamble, and lose. Yet you still manage to get Astrid. Luckiest man on earth.