Yeah, I think part of the problem with the Electric type is after I signed up for the challenge, I checked Bulbapedia and found out that there's only something like 14 Electric type Pokemon in the whole game, I don't recall the number but it was a low amount. Add to that the fact of having almost no dual types to take advantage of, and it was making for a bit of a plodding experience. In addition to Poison, I was actually thinking Ice type as well, the idea of Glaceon as the main Pokemon... of course EJ already did that himself, but it could still be fun. :P
And yeah, I'm going with Krabby/Kingler. I watched the original season of Pokemon a week back or so (box set for the win!) and the Pokemon League match where Krabby evolves and kicks butt as Kingler inspired me! (Plus, he's always come across as a cool Pokemon and I've never raised one, so I figured why not? lol)