Just beat the Opelucid City Gym and the Humilau City Gym today.
And as I post this, I am on Route 22, battling away.
My current team:
Rio (Lucario) Lv. 47
Evoli (Espeon) Lv. 49
Fastwing ([Female] Unfezant) Lv. 50
Zack Jr. (Serperior) Lv. 47
Flame (Arcanine) Lv. 47
Diggy (Excadrill) Lv. 47
Battling trainers for exp real fast, and then getting on with the story.