What's the best level to go against the Elite Four in Pokemon Black or White?

50-60 I have no idea how your at such a low level but thats the level you should be at. A good way to level up is to put them in the daycare on Route 3 and then go into the Battle station in Nimbasa City( the one with the trains and its like a big circle0. Then walk down until your in the middle of the big round walkway, and put something heavy on the down and B ons and leave it there for like the night. (each step is one EXP for your pokemon in the daycare) So by the time you wake up your pokemon should've at least grown 20+ levels. Of course any moves learned at a certain level will randomly replace one of its move because the daycare lady is retarded. But yea 50-60 is a good level.