Any suggestions on quality birthright characters? Also, anyone I should specifically not waste time on bc they are bad?
Also, in general for birthright, should I be leveling everyone in their starting class to 20 before worrying about anything else build/class wise?
Invaluable Units: Corrin, Ryoma, Azura, Felicia/Jakob*, Hinoka, Crimson, Reina, Kaze, Saizou
Good Units: Takumi, Silas, Hana, Tsubaki, Oboro, Kaden, Sakura, Hinata, Kagerou, Orochi
Decent Units: Mozu, Setsuna, Azama, Hayato, Rinkah
Pair Up Units: Rinkah, Kagerou, Silas, Hana/Hinata, Setsuna
Child Units: (All of the child units)
Invaluable units are either immediately strong (Ryoma, Crimson, Reina) or have high availability and are useful throughout the game (the rest)
Good units are... good units that are mostly self-sufficient. Some of them will need a few resources to be maintained (Seraph Robe and constant HP tonics for Hana, Speed Wings for Takumi, etc)
Decent units can pull their weight, but they need a moderate amount resources to be good. You need to feed Mozu/Hayato kills, and Rinkah, Azama/Setsuna need special treatment, etc
Child units (typically) come later in the game, and the majority of them are outdone by 1st gen units (they're definitely not as godlike like in Awakening), but they're pretty good units, especially if you wait until they come with the offspring seal.
*Jakob has less utility in the mid/lategame due to fact he can't keep up offensively. Felicia can still dish out good damage with the Flame Shuriken.
EDIT: Talked it over with someone and came to conclusion that Hayato and Rinkah are at least on par with Mozu.