Level 66 Steelix. Training it to be in the 70s with my other pokemon.
After that, I'll probably work on training a Swablu, which is level 24, and ev training an Aggron and Venusaur I got from Leafgreen. Didn't EV train them in that game, since I had never heard of it before until, like a month ago XD
Then, train my level 1 Riolou and see where that leaves me.