If you're looking for a solid Raichu, look no further than the daycare center. It's best to breed a pikachu not a raichu, a pikachu, holding a light ball. The pichu will know Volt Tackle. Then evolve little Pichu as soon as possible, becase it stinks. Have it hold a soothe bell and feed it a million poffins/pokeblocks of it's favorite flavor. Since it's at a low level and its stats can't go lower, feed it the berries that foster friendship.

I would LOVE to say that pikachu and raichu are the best electric types around, but they are outplayed by quite a few. They lack in HP, and defensive power in physical and special.Their speed is fantastic, however, so take full advantage of this.

Moveset without human interferance:

Thunder - Thunderbolt - Double Team - Light Screen

Take out something in there for Volt Tackle. I just didn't put it up there because it requires "human interferance".