It depends upon the conditions of the zapping. If I can be zapped in and become a badass character who survives, then I'd go with that. (BUT I MUST BE ALLOWED TO USE BOTH DARK MAGIC AND SWORDS, and be zapped into FE: Radiant Dawn. I just hope that I get to travel with Ike so I can get my hands on Mist...)
If it must be any other way, then I'll zap Eirika out because I figure she'd be the easiest to get a date with. Just protect her and take a spear the chest in the process.