You are so wrong it hurts.
Psychout: that actually sounds pretty fun! Like only using the characters you'll actually bother levelling up? (like in FE6, would it be like not using Marcus, Zealot, Toreck, or Lance, and only using Alan as your Cavalier/Paladin?)
Ross as a Beserker in SS is pretty much superpowered, what with 10 extra levels, you will max out in STR easily.
Amelia as a Paladin/General can wall entire armies, and as a General she will double strike alot.
Ewan Is an amazing Sage/Mage Knight though he does get outclassed it seems.
Just because a girl cares about you doesn't mean she is going to marry you ಠ_ಠ(if you are a Guy, or some reason, I think you Marry Lyn, she seems to really care for you).
You made my day with that vital truth.I've played FE6, I know what a terrible character is.
Not really. After FE8 ends, you start a new mode where you travel around the world map killing monsters. There's really no reason to ever start more than one FE8 save file aside from challenge runs.