If you're going to even bother using the Pikachu evo-line, you might as well use Pikachu. Raichu isn't too much better, honestly. It's a matter of preference, really.
But do keep in mind that you'll have as much success competitively using a Farfetch'd or Metapod.
But Light Ball Pikachu hits impressively hard with Volt Tackle. The recoil may be horrendous, but then, Pikachu isn't known to stay alive long anyways. --- It's more important to master the cards you're holding than to complain about the ones your opponents dealt. - Grimsley