I've seen them both, and both are wonderful in themselves. One word of advice, DO NOT buy the closest tickets to the stage for KA. When we purchased our tickets, the customer service rep steered us to the center section, right after the isle break. Warning us, that if you sit to far front, you'll be turning around alot to see the action that is all around you. She was right and honestly, these tickets were actually cheaper.
Mystere, you can pretty much sit anywhere. We were on the side of the stage an enjoyed it immensely.
Also, make sure you don't show up just at show time, go a bit earllier...they always have some "pre show" entertainment to keep you occupied.
Enjoy!!