I'm sorry, but I tried this once and wasted about half an hour because my computer wouldn't save the review so I have to do this again.
If you know any Pokémon rpg games, you know the beginning. A crazy mom will send her child off without money, not for college, meets Pokémon, and becomes the best trainer. What I love most about this game than other generations is the music, the Pokémon, and the gameplay.

I'll go on youtube to listen to the gym leader or elite four music extended when I'm doing work. This is my favorite music, with johto close behind.
Then I prefer this generations Pokémon since there aren't a lot of rare Pokémon that don't evolve that aren't legendary, and this generation doesn't build off of other gens, like sinnoh how a lot of Pokémon were added to many evolution trees from learning a move, evolving at a certain place in the game, or raising friendship. This generation has it's own set of Pokémon, it's own identity.
The gameplay? I just love hoenn better than other regions. It's some connection I have with this one game in particular.

Do not read ahead unless you are FAR ahead in the game, already beat champion.

Go on Google and search this site, Serebii.net. This has detailed information about every game, movie, and everything else. Just go to the generation in specific or certain game, and you can learn about the Pokémon, their moves, location, and you can find info on legendaries like the regis or latias.
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Also there is a glitch in the game at the Battle Frontier that lets you clone. This is only a good thing in the actual GBA where you can trade and migrate for a good purpose like arceus in johto. I'm not sure the precise info, but there is a video on youtube that shows how to do it.

You'll need to go to a certain building in multi wifi and right when it says saving or it is saved, restart the game. There should be an empty slot thou. Again, I'm not certain on the specifics, so go on youtube.