I'm confused and don't know whether to go through route 16 or 11 and i don't know where to train for the lvl 60 trainers in route 11.
You can't reach the Level 60 trainers until AFTER the Elite Four. So the best place to train before the Elite Four, Victory Road is your best shot.
What Mew said... also you can train on route 10. Run around in front of the grass until you see a patch shake. The Audinos there will give you 2000+ experience!
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