Manectric for sure. Plusle is a gimmick Pokemon, with below mediocre stats, while Manectric a fast powerhouse, with a great design to boot.
Lightning Rod provides resistance against the electric type, which Manectric is resistant to anyway. However, it will completely eliminate any damage from an electric type move. Very useful. Static is even better, since it'll paralyze those pesky gym leader and elite four Pokemon for you!
Manectric's growth rate is slow. Something else to consider if you hate grinding.
Plus raises Special Attack IF you have a Pokemon with minus. So either get a Minun or have a useless ability.
Medium Fast; you'll train it quick
- Manectric evolves from Electrike, where Plusle does not evolve
- Manectric learns Discharge at level 30, one level earlier that Plusle
- Manectric's Special Attack is 105, Plusle's is 85.
- Incidentally, both Electrike and Plusle are found on Route 110, so you'll get them at the same time.