I'd want to be on Elibe, as a mage, archer, pegasus knight, wyvern rider or myrmidon. Vast preference for myrmidon. I'd either be from Etruria or Ilia. I'd likely just be on the winning side, trying not to fight very much or get myself into any danger. I'd most likely be a really crappy mercenary. I guess if a character based on me were put into FE6 or FE7, then she'd be a recruitable enemy unit.
My weapon of choice is a bow, but that's not an option for a myrmidon so I'd maybe have a Light Brand.