Best seating for a concert?

I'm going to a concert at Philips Arena but I can't decide which seats
to get. Which section do you think is better: 409, 215, or 303?
Heres a seating chart:

http://www.stubhub.com/britney-spears-tickets/britney-spears-atlanta-philips-arena-7-17-2011-1069594/