The front pew or the last pew all get the same experience.  If you want to to see all the action up close - head for the front.  If you just want to sneak in the back without anybody seeing you - that'll work, too.  There's no assigned seats and nobody will get upset if you sit in their seat.  There's even some sharp looking guys at the doors that can find you a spot of your choice if you'd like.  Just like the fancy theaters.  Sorry, no popcorn, though.