Ability: Sap Sipper
IVs: Flawless or as close to flawless as possible ^.^
Shiny: Of course
Hatch Location: Any, preferably a city/place rather than a route though XD
I'll get on this (when I'm not feeling lazy o 3o)
I use a flashcart with Pokegen to export my Pokemon as a .pkm file which I upload to Pokecheck. Pokecheck can see all the hidden data (trash bytes, terminator sequences, and what not).