I'm new at this, so sorry if I break any rules.
Lord: Krom. He is just plain awesome.
Lance Knight/Blade Knight/Axe Knight/Bow Knight/Cavalier/Great Knight/Paladin/Gold Knight/Silver Knight: Geoffrey.
Myrmidon/Swordmaster/Trueblade: Geez... Navare (I know its spelled wrong) I love all of his archetypes though.
Fighter/Warrior/Reaver: Barst
Soldier/Halberdier/Sentinel: Rufia, mostly cause of his animation.
Mercenary/Hero: Ogma
Pegasus Knight/Falcon Knight/Seraph Knight: Marcia
Wyvern Rider/Dracoknight/Wyvern Lord/Dragonmaster/Dragonlord: Haar, no contest.
Archer/Sniper/Marksman: Shinon, sorry Rolf.
Knight/Armor Sword/Armor Axe/Armor Lance/General/Marshall: Oswin
Mage/Sage/Archsage: Erk
Priest/Monk/Bishop/Saint: Lucius, not many to choose from.
Cleric/Troubador/Valkyrie: Liz
Thief/Rogue/Whisper/Assassin: So the, I know he is horrible but I still love him.
Beast laguz: Skrimir
Bird laguz: Tibarn
Dragon laguz: n_n