Oookay. I think this could go down to personal opinion, but I'll give it my best shot. I have a Pokepaste of all the sets at the end for those who were patient and chose to read the whole thing.
Electrode:
HP 60 (boo)
Attack 50 (boo)
Defense 70 (boo)
Sp. Atk 80 (barely useful)
Sp. Def 80 (barely useful)
Speed 150 (awsome)
Elecrode seems bad, but can set up light screen(s) and generally be really annoying to deal with. It's bad attack stat doesn't stop it from exploding hard. It can learn reliable moves like Thunderbolt and Rollout, and it's not too bad. A good vanguard.
Electabuzz
HP 65 (boo)
Attack 83 (barely useful)
Defense 57 (boo)
Sp. Atk 95 (decent)
Sp. Def 85 (barely useful)
Speed 105 (good)
Electabuzz isn't that BAD,but it isn't GOOD unless you want to transfer it to another Gen and evolve it into Electavire. However, I'll try to slap together(and tape together) a set for it. Trust me, Electabuzz is not a very good electric type in gen three.
Raichu:
HP 60 (boo)
Attack 90 (decent)
Defense 55 (boo)
Sp. Atk 90 (decent)
Sp. Def 80 (barely useful)
Speed 110 (good)
Rauchu can use a good Thunderbolt and can run circles around more then a handful of Pokemon, but it's not all that reliable. One good(physical) hit, and Raichu is a pancake. Or a Pikacake. Whatever. I'll try to make a set for it...
Magneton:
HP 50 (boo)
Attack 60 (boo)
Defense 95 (decent)
Sp. Atk 120 (very good)
Sp. Def 70 (boo)
Speed 70 (boo)
Magneton is pretty good, it's steel typing walls a good part of the game, and if you get lucky enough for Sturdy, then it could tank a single hit from Giovanni and harshly lower it's special defence/defence with Metal Sound/Screech, then your other Pokemon can finish him off. A potential support wall. It can learn reflect, which finishes the two screens that Electrode very kindly started. It won't be hard to make a set.
Jolteon:
HP 65 (boo)
Attack 65 (boo)
Defense 60 (boo)
Sp. Atk 110 (good)
Sp. Def 95 (decent)
Speed 130 (very good)
It's a really good mon. Probably ur best bet if you don't want a wall.
https://pokepast.es/5cdf139df3e1801d the paste for those who waited.
Tell me if I missed anything!