Mine are Geitz, Seth, Marcus, Jaffar and Karel.
Geitz- Because he and I have a lot in common personality wise, and because he is my favorite character in the Fire Emblem series and in my opinion the best Warrior in Rekka No Ken and one of the best pre-promotes. Extremely useful.
Seth- Because he is Kent, except with a much better personality and because he's an awesome unit. Great guy and great character.
Marcus- Because he's a good unit ( Especially in EHM and HHM. In my first playthrough of FE7 as a noob, I literally let him kill everything and Eliwood and Hector were both only level 2 at Dragon's Gate lol) and I admire his perserverance and determination to still be a valued ally to the main characters in each game he appears in despite his age. Love this guy.
Karel- Because he's badass. Enough said.
Jaffar- see Karel