In Fire Emblem games i usually tend to not use prepromotes since i think the charm of the games is to see your underdogs become into killing machines. To i do commit exceptions when i like the character (Harken in FE7, Zeke in Echoes) or they are so OP you are stupid for not using them (Ced in FE5, the Laguz kings in FE10)
People mentioned Chrono trigger and IMO the worst character in that game is Marle, IIRC one of her triple techs with Chrono and Luca is the earliest you can use dark magic in the game, but besides that her only standout potential is as a support, and i think Robo and Frog have her beaten in that regard.
In Devil Survivor 1 vanilla physical characters are kind of underwhelming since the best physical move in that game is deathbound, which is mediocre compared to the dances you can learn, specially holy dance. But in overclocked they added a bunch of new phys moves from DeSu 2 like multi hit, which paired by pierce makes physical characters destroy everything that doesn't reflect phys, but a character who never got such a buff despite needing it heavily is Yuzu. Leaving aside that she is annoying as hell, she, alongside Amane, are the only 2 characters in the game with 3 mov instead of 4, meaning she will always be behind everyone unless she always has a wilder or avian demon on her team, but unlike amane who joins late in the game where you probably have a bunch of demons of those races, Yuzu joins at the start, so her 3 mov is more painful until you get one of those demons, specially with the amount of "save NPC" missions there are in the game, and she also gets outclassed by all other mages who not only have 4 mov, but have better stat spreads (Amane, Midori, Mari). Also touching a bit on the 2nd game, i never used Fumi despite being one of the best characters because of how annoying she is, the same goes to Daichi although he is useless as well as annoying.
