Exactly what it says in the title. Not counting Team Spotpass [Gangrel, Aversa, etc. and the Einherjar], Robin or Chrom, who overall out of Generation 1 is your favorite? And not for baby making- I want pure, statistical and personality-wise reasons to use each character. Personally I can't possibly see any future where I don't use Kellam. I don't care if he's a high- or low- tier unit, he's quite a tank and makes a pretty strong General, too.
Oh, and you're not allowed to pick Flavia and Basilio only for "joining late with high stats." That's cheating.