Thanks to whoever made/maintains this website, I refer to it constantly especially the game-specific Pokédex pages!
Suggestion 1: Missing Pokémon? Today I noticed that there are some generation II Pokémon (such as Hoothoot, Mareep, Aipom) which I think can be found in certain areas of the safari zone in Emerald? These Pokémon aren't listed on the Ruby/Sapphire/Emerald Pokédex but since they can be legitimately obtained within Emerald, shouldn't they be?
(Note... I am actually playing Sapphire at the moment so my source for this info is er.. "a popular Pokémon wiki" page about the Hoenn safari zone. If you want me to post the location for this page here I'm happy to but I am concerned that my post would be deleted for linking to an external site. The name of the site is in some way related to Pokémon #001 ... I'm sure you know which I mean... But anyway if this information turns out to be incorrect then these Pokémon should not be added to the Pokédex, for obvious reasons.)
Suggestion 2: Tabs for the different games within the Pokédex? I also realised that there are Pokémon that you can catch in the safari zone in Emerald which you can't find there in Ruby or Sapphire (e.g. those listed above) and aside from the safari zone, similar to all the main series Pokémon games, aren't there Pokémon that you can only catch in Ruby and not Sapphire, and vice versa? Also I think that there are some Pokémon in Ruby and Sapphire which are missing from Emerald (e.g. Surskit, Meditite)?
I thought it would be helpful to keep the Pokédex displayed the same way that it is now (as I understand, it is a complete generation III Hoenn Pokédex, showing all the Pokémon that you can catch in Ruby, Sapphire and Emerald?) but with an additional button or tab that filters by Pokémon that you can find in each game, for example a "Ruby" button or tab which then displays only the Pokémon you can find in Ruby, excluding those that found only in Sapphire or Emerald, etc.
Suggestion 3: If you thought suggestion 2 was a good idea, then this could be done for other generations of games too, e.g tabs to separate out Pokémon from Gold, Silver and Crystal within the relevant Pokédex? Ready for when I replay these games lol... (I like to look at your Pokedex at the beginning to see which Pokémon are in the game, to give me ideas for what I'd like in my party...) :)
Thank you for reading! Emmy