Where is the best place to see a concert?

Depending on the style of concert you want to attend, there are many places in Philadelphia to go see a concert. The Kimmel Center has more of a "classical" selection of concerts. It's a great place to hear an orchestra; the acoustics are amazing. The Electric Factory is a warehouse style facility that the younger crowd enjoys. There is also the TLA on South Street that is usually an awesome time when there isn't an altercation.