[ProfessorChill]

Pokemans Red. It was the first one I played so it's my favorite ^_^

[Sef]

Emerald, but I liked Fire Red too, don't really remember much about it tho.

[Cubesnail]

Pokemon Pinball 4 lyfe. Aside from that probably Fire Red considering it was my first pokemon game, or rather, my first GBC game.

[Eminem]

Emerald of course, with silver following closely.

[JTMatrix]

Pokemon emerald for me ^.^

[Roosta]

Yellow.

Played the original cartridge like hell and when I got rid of my GBC, revisited it on my emulator and got addicted again.

[Flareon]

Pokemon blue, the originals are the best.