>>28621178>Battle MaisonPretty much every game has a battle tower variation
>Battle instituteIt's like a battle tower but even more boring, and every game after BW has it
>Contest spectacularGet's boring after a while and it's too easy to grab your attention for long, although i like the pokeblock mechanic.
>Pokemon amie minigamesToo simple to be fun, people only do them because it's necessary to raise the affection quickly
>Super Training minigamesSee Pokemon amie minigames, plus they're worthless since horde training is much faster
>Pokemon League upgraded rematches (with megas)Again, every game has had this before and just because they use megas doesn't mean they're stronger, just look at the HGSS rematches, they're incredibly challenging and much better executed
>Delta EpisodeWouldn't necessarily consider that post game since it's a direct continuation of the story.
>Habitat List completionWas in B2W2
So, out of all the things you listed, the only original and/or actually fun things to do are:
>Super Secret Bases customization/ battles/ flag collection>DexNav chaining>Mauville Food Court daily rematches>Biggest Legendary hunt>SoaringThose are fun, but are no PWT / Battle Frontier
