My favorite was Silver, it was my first Pokemon game (short lived due to me being a small absent minded child who then traded it for Pokemon Blue). After I beat blue I received my Silver back, along with Crystal. I loved just seeing how far the games had come in such a short amount of time and I had watched the show for a few years and loved it. Silver also introduced me to my favorite Pokemon of all, Cyndaquil.

I love gen 3, especially emerald. I don't really have the nostalgia of the really old games due to me being 14. However, I enjoyed them. But emerald will always be the best imo, I love gen 3.

Sapphire was the first one I finished fully with a full pokedex through trading and not cheating, so I guess I would say that.

But I like Soul silver too

My favorite was crystal because one day i bought a used one from gamestop and it had all the legendary pokemon lvl 100 already i was so happy but at the time i didnt know who any of them were so i restarted the game by accident thinking i couldnt play it anymore