hhm is at best a 6/10 if you compare it to all the other fes. That being said, lyn is a 0/10, eliwood a 4/10, eh and hn are both 5/10s If you'd like to see hard, play fe5. It is the hardest fe of all time, as well as the hardest turn based strategy. fe9 for the gcn is said to range from roughly 4/10 all the way to 10/10(3 modes, normal, hard, and maniac. The last of which is almost as hard as fe5).
I am Cylun. May your life be easy and your future ripe.