You seen my VM before about FE and Pokemon hacking?
Omg, it dissappeared.
Well, FE hacking is harder, as tools aren't as advanced. Editing classes and people are easy enough, but scripting and mapping aren't too easy.
Mapping has no comforts, as you're using a general mapper, not a specialised FE mapping tool. A separate tool inserts maps into games.
Scripting isn't fully complete for FE8. But it is pretty much for FE7. But it is confusing.
Overall, FE hacking is probably as easy as hacking Gold. :\