I like 'Dear J' and '1%' the best
Both songs are very nice and I like the dancing too...
But the MV I preferred '1%'
So my ultimate choice is '1%'
But to be honest, I like all her singles... all very interesting and they have their own selling points
I can't wait to listen to her 5th single...
Also I like her graduation song 'Saigo no Door'