Flannery.
I just played Ruby and thought of this thread... after my easy defeat against her.
I had a bit of trouble with her Torkoal... however, other than that, no problem. Her Torkoal... I admit was hard. But, only because my Gyaradose doesn't have no water moves. If she did, I'm sure he would've been as easy as her other two Pokemon. I was expecting her to be a challenge... because, come on, right now my Pokemon with the best moves are a Nuzleaf and a Combusken. One's grass, the other's fire. Grass is weak against fire... fire is resistant to fire... and my only water pokemon doesn't have a water move yet... yet, she was easy pickings.