For me, he/she must know to dance a bit atleast..
Shud have learned or expertised in minimum of any one form of dance forms...
Shud know abt somee technical aspects other than just njoying dance and judging on the overall impact of the dance...
Shud be bold enough to say to contestents that the perfomence was below par for bad perfomences and shud give warnings, if they perform badly consistently...
Moreover, he shud judge according to the dancing not on the sexual looks and other irrelevant factss...
Just said wat i feel after watching 4 weeks of jdj 6... no bashings intended...