Silver was my favorite, I liked yellow but silver had both regions and you just about got to play two games worth, not to mention you could have the coolest ones from the first generation
My real team for silver was just three Pokémon, a Mewtwo with Recover, ice beam, psychic, and thunderbolt, as well as a Lugia with Recover, Aeroblast, Psychic and Thunderbolt, followed up by Jolteon with Pin Missile, Shadow Ball, Thunder, and Thunderbolt
Rarely had to use anything but Jolteon