Forum:Top 5 Tellius Underdogs?

The only Fire Emblem games I have are the Tellius series games. I really like using the units that are considered "Underdogs", as in weak units that become amazing if you take the time to train them. I'm currently doing a second playthrough of Radiant Dawn. What I want to know is, who do you guys consider the Top 5 best Underdogs in Radiant Dawn that I should try to main? Not counting Micaiah and Sothe because I used them on my previous playthrough.