One of my biggest complaints with HM is the overworld editor is in 32x32 chunks. Every other editor is 16x16, and it's seriously frustrating to be limited by set blocks of 32x32. Dungeons freaking out is also
It seems like there's not any good editors for a top down SNES action adventure game, which is unfortunate, especially since it's freaking 2016! SOMEDIT is maybe not dead. Hyrule Magic is dead as far as development goes, and is pretty frustrating for a lot of people, but at least GaiaTheCreator looks really promising!
If there was a good, well working, well supported Z3 editor, I think we'd see some fantastic hacks. I'd love to see a community like SMWcentral but for Z3, people making new sprites, new patches, fun adventures, etc. Zeldix.net exists, but it'll never reach its potential with the tools we have now.
MathOnNapkins, please save Hyrule!